The domain could not be found because the server is not operational. I’ve disabled and re-enabled the network adapter.

The domain could not be found because the server is not operational Most likely, there aren’t any shenanigans happening, which makes this blog different from my usual writing. I look who is allowed to access this server and what would you know only the local admin is, at this point I'm like hmmmm ok should be an easy fix just bang in the security group and bobs your uncle, but for some absurd reason the host whilst domain joined isn't showing me my domain as a choice to find groups. Nov 4, 2017 · Hello everyone, I am facing a strange issue in one of our small office. But when it comes time to connect a workstation it just errors out saying the domain could not be contacted. Jan 10, 2025 · The "Server not operational" error when adding a user to a trusting domain is more than just a simple technical glitch; it can signify deeper underlying issues within a network’s configuration and security framework. naming information cannot be Located for the following reason, The server is not operational. Fix: An Active Directory Domain Controller for the Domain Could Not be Contacted. DNS is the heart of Active Directory (AD) and makes things work correctly, including domain join. Ping is a Feb 15, 2025 · I’m stuck trying to get Windows Server 2025 to function as a domain controller. Your problem is that you're using a "plain" domain name to bind - this won't work in LDAP. The DC had its sole DNS server listed as 8. Many methods may be used to verify that connectivity is sufficient since there are many causes of network problems. g. com -Port 389 in PowerShell. This is the error I'm getting when trying to open Active Directory and Computers on the Domain Controller: Naming information cannot be located because: The network path was not found. Not sure whether this could have caused the error messages that we’ve been seeing on the server. About my problem: Currently a Windows… Aug 24, 2012 · On the server NIC settings put your servers IP address in for preferred DNS server and an internet based DNS server as a secondary (Google 8. But then the dcpromo-wizard does state the wrong username or password. . The SRV records for the domain controllers must be in the DNS database. Jan 25, 2024 · I encountered the message “An Active Directory Domain Controller (AD DC) for the domain ‘domainname’ could not be contacted” when attempting to join a new Windows workstation or server to an Active Directory (AD) domain. Nov 8, 2021 · The DC is the DNS server that is listed in the DHCP scope for the LAN. (without dc test-scripts) I try to start "Active directory users and computers" and get the following error: Naming information cannot be located because: The specified domain either does not exist or could not be contacted. "Data from " domain. Oct 30, 2020 · "The Operation being Requested was not performed because the user has not been authenticated. If you are tying to connect to a Domain Controller running Windows Oct 28, 2022 · Active Directory Domain Services could not determine if the domain name is unique on the remote domain controller (Forest DC name). If the client computer cannot connect to a GC, it will be unable to perform certain operations that require access to directory data, such as logging on to the domain or resolving user names. So I had an operational network with now 2 dcs and one being the new server that has seized roles. If you are encountering the "The server is not operational" error in Active Directory, it can be frustrating and disruptive to your operations. if you are using LB then use individual server and then check which server it is failiing , if it is not failing then check LB what is there if some network issue. You need a valid LDAP bind string - something like LDAP://dc=yourdomain,dc=local or something. I am able to ping the server with the IP address and ping the server by the machine name, and even ping the machine from the server, but I cannot connect to the domain, everytime I type the domain name it asks for the user name Mar 8, 2022 · The local domain controller has been selected to be a global catalog. Contact your system administrator to verify that your domain is properly configured and is online. it can be network issue or communication between iqservice and windows forest/domain or Cert issue. Sep 15, 2015 · In order to change from Eval. This error typically indicates a problem with the connection between the client and the domain controller, preventing the client from accessing the domain's resources. After taking out the server from the domain and adding it again, using this time only the domainname 'ourdomain' without the However, I cannot open the Active Directory tools. When you try to connect to the server, you may come across this error: The specified domain either does not exist or could not be contacted. When Im in the properties box with all the users eg Administrators I try to add a administrator group. May 3, 2019 · Ping tells you the server is online, but a firewall could still be blocking LDAP connections. When attempting to access active directory administrative center: “Cannot connect to any domain. Using Server Manager or PowerShell to demote the DC Apr 28, 2015 · “Naming information cannot be located because: The interface is unknown. com at the command line and make sure that DNS is only giving you the IP of the one server you expect. The GC is a specialized server that holds a complete replica of the directory partition for a domain, including all user, group, and computer objects. Mar 6, 2014 · Active Directory Domain Services --------------------------------- Naming information cannot be located for the following reason: The server is not operational. + CategoryInfo : OperationStopped: (ad1:String) [Test-ComputerSecureChannel], InvalidOperation Exception Mar 17, 2022 · If Active Directory Users and Computers (ADUC) is not responding or is slow to load on Windows Server or Windows 11/10 client machines, see this post. local The RPC server is unavailable. com consists of 2 Server 2003 DCs and 1 Server 2008 DC. Looking to elevate your IT skills to the next level? Check out this amazing Jan 24, 2022 · We receive this error: "Active Directory Domain Services: the domain could not be found because: the user name or password is incorrect" We found that if we remove the 2022-01 cumulative updates and reboot that the issue is resolved. May 12, 2025 · This tutorial contains instructions to resolve the following problem, when you try to join a Windows based computer to an existing domain: "The Specified Domain Either Does Not Exist or Could Not Be Contacted". The Remote Server Administration Tools have been installed because I want to be able to use Active Directory Users & Computers from this server. If the name is correct, Details for troubleshooting information. Nov 6, 2013 · Good news! the fix is working for Windows Server 2022 also! Following comment is useful Just had a similar problem on Windows Server 2022. Dec 31, 2019 · Operation failed with the following exception: The specified domain either does not exist or could not be contacted. "YOURDOMAIN" - or leave NULL for "default" domain) optionally a container (as an LDAP path - a "distinguished" name, full path but without any LDAP:// prefix) as seen in this answer. My network shows Domain network and not Public. 30 minutes later I checked and found that I could connect to the domain controller in Users and computers, and when I did “netdom query fsmo” it came up correctly on my other servers. Windows will create this user account, but the user can log on only after the user name is verified to be unique. ” Jan 23, 2024 · The main reason for the The specified domain either does not exist or could not be contacted error in Windows is usually due to incorrect network settings on the computer. XXX. ) Nov 6, 2020 · Everything was working fine up until maybe a couple of hours ago when the server crashed while looking up an ADO so that I could assign permissions. And the domain is called corp. Is there something I need to have my boss enable on the domain controller to get this working again? Jan 10, 2025 · @ancardoso may be you can narrow down the issue. As I re-opened the tab I found myself unable to login as "The Server Is Not Operational" errors appeared on the login. *Created branch site in active directory sites & subnets and mapped branch network subnet to site. Actually, if you try to bind to LDAP://MyDomain, what you're really doing is trying to bind to the server called MyDomain. specified domain either does not exist or could not be contacted. I have a new Windows 11 pro station that I wish to connect to my Domain, I changed the DNS address to point to the server and turned off IPv6. Sep 18, 2021 · The server is not operational. Contact your system administrator to verify that your domain is properly configured and is currently online. Directory partition:DC=StuApp,DC=xxxx,DC=yyyy The StuApp Partition was deleted months before this server was demoted and removed and it was believed that no problems existed. Applies to: Windows Server (All supported versions) Original KB number: 3108513 Remember that all traffic between Domain Controllers has to be bi-directionally allowed. It is intended to provide Active Directory administrators with a method to diagnose replication failures and to determine where those failures are occurring. Then the DN I use for my search is Feb 24, 2022 · When your users report that they see “an active directory domain controller for the domain could not be contacted” there could be a few different causes for this issue. If you are trying to connect to a Domain Controller running Windows 2000, verify that Windows 2000 Service Pack 3 or later is installed on the DC, or use the Windows Server 2000 administration tools. Take a breath, go through the process methodically, and you'll find solutions. In Windows Server 2008 and Windows Server 2008 R2, netdom is available when the Active Directory Domain Services role (AD DS) is added. It always shows an error: Active Directory Domain Services Naming information cannot be located because: The specified domain either does not exist or could not be contacted. The setup goes smoothly like in past versions. What are the ports that should be opened between the remote DC and the machine I'm using ADUC in? Oct 6, 2002 · Naming Information cannot be located because: The server is not operational. New PC’s cannot Sep 30, 2020 · Recently we have made a discovery that whenever the domain administrators bring one of the controllers down for maintenance our apps randomly generate "The server is not operational" exceptions for a seemingly random subset of users. If you get extras or public IPs there's old garbage in the AD dns config you'll have to clean up. Google DNS) listed as one of your DNS servers, domain joining could fail. Please help! Dec 20, 2020 · Active Directory Domain Services could not create the NTDS Settings object for this Active Directory Domain Controller CN=NTDS Settings,CN=XXX ,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=XXX,DC=LOCAL on the remote AD DC XXX. My NIC card is fine because I can remote into this Server. Hopefully this video may help you resolve your active directory Jul 11, 2024 · I try to setup a domain forest on my Windows machines, and actually I can do it successfully and can list the domain users from other trusted domain, but several minutes later it does not work any more: Then I check the properties of this domain trust,… Oct 21, 2015 · I’m getting the following errors after running an directory restore through Windows Server Backup on Windows Server 2012 R2. We added a secondary domain controller to our domain that is a Server 2008 R2 std. I have never pulled it off a domain controller (I'm not a domain admin), but I think you just need to export it from the Certificates MMC snap-in, then import it on the client machine (when it asks, you don't need the private key for this). local, just the server name…is that ok? I figured it was because it made contact. We’ll explain what these errors mean and how you can resolve them. I moved the child DC back in and remade the records and all is talking again. I can't open anything else (site and services, etc) I have removed and The domain controller has no alternative DNS server specified or points to a domain controller over a wide-area network (WAN) link. It also passes between the two… Nov 27, 2024 · Understanding the Problem An Active Directory Domain Controller (AD DC) is essential for authenticating and managing resources within a domain. The Active Directory Domain Services (AD DS) Wizard in Server Manager employs Kerberos authentication rather than NTLM authentication to explore the AD DS forest once you connect the server to the domain. Jan 23, 2018 · Can you give us the exact wording of the failure message or a screenshot? If you haven’t tried yet, run “dcdiag” from an elevated cmd prompt and check the output for issues. adtest" could not be contacted", with further information: Nov 16, 2021 · Hi everyone. Since this DC is not able to be demoted, I need to remove it from AD. Now I demoted and shut down the old server and removed AD DS. Dec 15, 2004 · I'm not sure if this is how it should be formatted, I copied what was working for the same app on another domain. If there are any questions, please just ask and do not just write technical terms, because I'm not quite so fit. exe - Windows Server | Microsoft Learn) Because its a DC, you will need to stop the KDC service and configure it for manual startup. Jan 15, 2025 · Provides a solution to an issue where you cannot start the Active Directory Users and Computers tool because the server is not operational. exe because when I bind to the domain there, I'm providing my id, password, and domain corp. Check ports to FSMO role holders, to all servers in same site as new DC and with replication partners from the next closest site. However, the domain controller does not host a read-only replica of the following directory partition. You should get a list of IPs that correspond to domain controllers and only that. Feb 21, 2012 · I can't open ADUC or even ping Local host. Feb 28, 2015 · I have a single Windows Server 2012 R2 Active Directory Domain Controller for domain MYDOMAIN. domain. I get the following Check the clock on the PC + the DC from cmd type 'nslookup' and hit enter, from the prompt type the AD domain name and enter. Feb 29, 2024 · The server is not operational Cause This issue occurs because NTLM authentication is disabled either in the domain or on the domain controllers. If you're not the AD admin, then ask them for it. Network port issues if local machine and DNS Server/domain controllers are located in different sites. local (replace with your actual domain name) to see if the DNS server can resolve the domain. (You can restart the service and set it back to automatic when you’re all done. A breakdown in your Active Directory or DNS can: Prevent new workstations or servers from joining the domain. Jan 15, 2025 · This article contains information and links to help you troubleshoot Active Directory Replication errors. You should not only check the configuration of IPv4 but also of IPv6. We have 2 domain controllers at one of our sites that's running up replication errors. In Windows 7, access to netdom becomes available when you install the Remote Server Administration Tools (RSAT). I was sure that it was not about DNS, because I pinged from ADM1 to server and from server to ADM1, and the domain names were correctly resolved (although ADM1 did not respond to ping). When I try open ADUC I get Naming information cannot be located for the following reason: The server is not operational. Dec 2, 2020 · I'm having the following error: domain xxx could not be found because the server is not operational. Even if the IPv4 settings are OK, the domain cannot be found if the IPv6 setting for the DNS server is invalid because Windows prioritizes IPv6 by default. It’s because when you use the FQDN in the command, you are authenticating to that server over Kerberos, so what happens in backend is that you are passing in the SPN of the resource and requesting a ticket granting service (TGS) for it from your local KDC. I'm not sure where to start with it so I'm in need of… Feb 15, 2018 · Found an issue where I moved the child domain DC out of the Site in Sites & Services and the DNS records were missing in DNS. Jan 18, 2014 · “Windows cannot verify that the user name is unique because the following error occurred while contacting the global catalog: The server is not operational” But in fact im trying to create user from the same DC…Please advice Your domain is a child domain off of a another domain in the same forest? Jan 21, 2021 · The DC I generally run the command on is not the server running the sync (though I did try it there to see if it was any different). I added a server 2016 to a domain that had one dc. Mar 8, 2011 · The strange thing is that I'm logging in to this server with my domain account, the domain controller is running fine, and I can even get a listing of domain accounts to add to the group. corp I can't compare it to what works in ldp. If child objects are present, do not delete the server object because it is being used by another application. Dec 20, 2022 · Also check the Ip settings on your domain controller it should be a static address and assuming you have DNS on the domain controller should have itself as the primary DNS server. "Naming information cannot be located because the specified domain either does not exist or could not be contacted" The first one being: "The Server is not operational" and the second one is a time out error. When I use ADUC from a current DC and tell it to delete, it comes up and informs me to use DCPromo (which I am unable to do as the server is unuseable), so I choose the option that says the DC is permantly offline. I also cannot open DNS server which is on the Aug 3, 2022 · Active Directory Domain Services: naming information cannot be located because: logon attempt failed. *Added Nov 1, 2013 · Hello, I have domain controller windows server 2003 R2. Additionally, discusses resolutions to errors in the DCDIAG tool. May 6, 2019 · Help - AD not working. The following error occurred when DNS Jun 17, 2025 · Provides guidance to troubleshoot "DC or domain not found" issues that occur during Kerberos authentication. IT can be daunting sometimes, but every challenge teaches you something valuable. Feb 7, 2024 · If the Server is not operational message keeps troubling you when adding a trusted domain user to a trusted domain in Windows Server, then this post may help you resolve the issue. Published January 22, 2021 Error. I can run Get-ADUser on this user object without issue, but I can't Set-ADUser and running these commands doesn't appear to be putting anything in the event logs. I’ve setup a new domain controller (server 2019) and “thought” I replicated it properly from the old domain controller. When you try to start Active Directory Domains and Trusts, you receive: The configuration information describing this enterprise is not available. Resolution To address this problem, perform the following steps: Integrate the server into the domain. Jan 15, 2025 · Cause This problem can occur if the server that is running the Domain Name System (DNS) service has not registered an "A" record for itself in DNS. to Full, I had to create a 2nd DC server, transfer Operational Masters, demote the original DC server, remove ADDS, convert the license to Full, activate, reinstall ADDS, Promote Server and transfer FSMO's back. Ensure that the server's time is synchronized with the domain controllers as time discrepancies can cause authentication issues. I want to perform remote administration of the Active Directory from a workstation that is not joined Mar 2, 2012 · The problem is that it is not a default part of the client operating system. If this name is not unique, rename the domain. DNS suffix search order is correct if multiple DNS domains are in play. " So the account is permissoned fine and i can run various commands fine in PS. For more information about Apr 29, 2013 · The NetLogon service on Domain Controller is not running. So, that’s all in this blog. DNS Server can’t be contacted because of network congestion. There are 2 DC servers with Windows Server 2019 to manage all users and computers for 5 different locations. This error is more than a simple nuisance. It is running Server 2008 R2 and is a Hyper-V VM, running on a 2008 R2 host. 3570 I am trying to use a local Users and Groups to join a local user to local administrator group. If you want to rename the server, you could specify that, otherwise let the server reboot as a member server. If possible, specify a valid domain controller or domain in your application or service configuration. This means that if you have an unreachable server listed, or a server that is not domain related (I. Dec 2, 2023 · "The advanced page cannot be opened because of the following error: The server is not operational" The same message appears when sharing a file and giving access to it. Jul 27, 2022 · If the correct DNS servers are not entered here, you now have to find out where the computer gets this configuration from. Jun 14, 2025 · Getting An Active Directory Domain Controller (AD DC) for the domain could not be contacted error? Fix it by using the same DNS servers. This helps bypass stale references until your environment is fully cleaned up. Jan 13, 2017 · Fixed | An Active Directory Domain Controller for the domain could not be contacted This time I have very simple issue that I am sure most of you are already aware about. Jan 9, 2023 · Windows Server 2019. Jun 24, 2015 · One does not simply reset the account password for a domain controller (Reset domain controller's password with Netdom. Jan 10, 2018 · “Naming information cannot be located because: The specified domain wither does not exist or could not be contacted. Is that normal When I open up Active Directory Users and Computers from my workstation, I receive an error: Naming information cannot be located because: Logon failure: unknown user name or bad password. Mar 6, 2019 · Yes, it would be on your AD domain controller. Aug 13, 2023 · Resolution Join the server to the domain and then configure it as a domain controller to address this problem. One of two DCS failed, now AD not working on second DC. corp. During restart, the WAN link may not be operational. Ensure that the domain name is typed correctly. Before the change, all locations were able to communicate with each Jun 17, 2025 · When the client tries to contact a service or application (referred to as the "target server"), both the client and the target server require a domain controller to facilitate authentication, authorization, and delegation. When I try to open active directory users and computers i receive this error: Naming information cannot be located because: The specified domain either does not exist or could not be contacted. E. You can delete the server object if no child objects are displayed below the server object. You can also try running nslookup domain. …” Changed HKLM\CurrentControlSet\Services\Netlogon\Parameters Jan 25, 2024 · I encountered the message “An Active Directory Domain Controller (AD DC) for the domain ‘domainname’ could not be contacted” when attempting to join a new Windows workstation or server to an Active Directory (AD) domain. Incorrect DNS settings, missing DNS records, or improper DNS server configurations can trigger the error. If the "A" record for the DNS server is missing, the process does not succeed. Can you run dcdiag /c /v and post it into a text box (the </> icon on the editor box). Sep 13, 2018 · I’ve found the FQDN, tried that, as well as pointed the DNS address to the server containing our active directory. Jun 20, 2022 · How can you encounter the ‘Active Directory Domain Controller for the Domain Could Not Be Contacted’ error? Hello Friends, In this Video i have tried to explain step by step about An Active Directory Domain Controller (AD DC) Could not be Contacted error and i hope this Mar 7, 2022 · The below error is shown when running TEST Connection in AD Production / AD Stage and AD Test. Has mapped drive using users profile. We have a domain called 'ourdomain. 1. Domain) the domain name (try just the "Netbios" name, e. Well, now the new server which was Jun 26, 2019 · Yesterday, when trying to add new pc to domain, went out successfully, but when trying to add local admin to the pc, we get the error “The server not operational May 12, 2025 · Problem in details: When attempting to add/join a Windows client computer to Active Directory Domain, you get the following error: "An Active Directory Domain Controller (AD DC) for the domain %domain-name% could not be contacted. Press D to join a domain. CompanyName. EventId 14550, DfsSvc – “The DFS Namespace service could not initialize cross forest trust information on this domain controller, but it will periodically retry the operation. Jun 14, 2023 · If DNS is not configured correctly, the client computer may not be able to locate the correct domain controller. sts. Nov 24, 2017 · The cause of this could be (a) your computer does not have permissions to register and update the specific DNS domain name set for this adapter, or (b) there might have been a problem negotiating valid credentials with the DNS server during the processing of the update request. On the other Domain Computers, you can check their the IP address and DNS server by running ipconfig /all on every machine. " When clicking on Sites and Services I receive - "Naming information cannot be located for the following reason: The server is not operational" When I click on ADSI Edit - I see all my correct information. Nov 16, 2022 · Hello, I am still new in the administration area and currently face an unsolvable problem. I notice errors relating to replication now on the new server (see below please). The user server for ou=someusers, ou=anOU,dc=more,dc=morestuff,dc=stuff: The server is not operational Aug 29, 2012 · When I select it and click ok sometimes it comes up and other times I get "The domain could not be found because the server is not operational. Sep 7, 2022 · You cannot start the Active Directory Users and Computers tool because the server is not operational - Windows server 2012 R2 however, I am able to open up DNS server console and there is no issue with clients communicating with AD server. Oct 26, 2021 · I have been trying to setup a new ADFS server and the configuration is failing with the following error: The SSL certificate subject alternative names do not support host name 'certauth. Jan 9, 2021 · After a DC demotion the domain is no longer available. But I get the following message Select users or groups The advanced page cannot be opened because of the following error: The server is not Apr 9, 2013 · Buddy wanted me to look over his stuff (his guy left) and when I opened Group Policy manager on his server got this…“domainname. Oct 27, 2015 · The 2008 R2 server is not a domain controller. Ensure the provided network credentials have sufficient permissions. Domain Name System (DNS): Anytime you have an issue joining a domain, one of the first things to check is DNS. Jan 6, 2024 · How did you get and set the IP address of the Domain Controller? You can get the IP address by running ipconfig /all on Domain Controller and set the static IP address on Domain Controller. Oct 9, 2012 · This will display the Server Configuration screen. There are no stale or duplicate DNS records Feb 15, 2024 · Gain insights into the "Server IP Address Could Not Be Found" error, its causes, and effective methods to resolve this frustrating issue. Jan 25, 2021 · Generally, this happens because one of the DNS servers listed as DNS servers in the joining computers IPV4 settings is not reachable or does not contain information about the domain you are attempting to join. msc, it works and sometimes it doesn't, it cannot be a permission issue because a user with basic access (only a member of "Domain Users" group only) is able to access this domain when is working. Try again later, or choose another DC by selecting Connect to Domain Controller on the Domain context menu. When the domain controller is started, it may hang for 20 minutes. The domain controller is restarted because of a power outage. Mar 16, 2011 · There's Active directory on windows 2000 advance server, I have a web server on Windows 2008 server Enterprise Edition, the following code works fine in Winsows 2003 server but when I installed Wi Nov 9, 2016 · This computer was not able to set up a secure session with a domain controller in domain “other domain” due to the following: There are currently no logon servers available to service the logon request. Test Name Resolution: Type nslookup yourdomain. Sep 30, 2021 · In Windows 10, when attempting to join the domain, I get the message "An Active Directory Domain Controller (AC DC) for the domain "simon. local' and I added the new server to this domain, using the full name 'ourdomain. Choose option 1 to change Domain/Workgroup membership. Jan 15, 2025 · Describes an issue that occurs when you configure a server that is running Windows Server 2012 from a workgroup as a domain controller. In this Video Learn How to fix Active Directory Error !! Fix: Naming information cannot be Located for the following reason, The server is not operational !! Jan 15, 2025 · Provides common resolutions to issues where you cannot open Active Directory snap-ins or connect to a domain controller from another computer. The old domain controller is history and can’t be revived. Nov 4, 2023 · Windows 10 Pro Version 22H2 OS build : 19045. 8. I have add our 2 domaincontrollers (2003/2008r2) to an application group and start the job. Mar 16, 2024 · Check Active Directory Configuration: Verify that your Windows Server is properly joined to the domain and that it can communicate with the domain controllers. Set it up as a domain controller. May 31, 2016 · In this blog we will demote a domain controller in Windows Server 2012 Active Directory Domain Services (AD DS). Apr 5, 2012 · Hello, I'm testing a virtual lab. 8) not 127. Type the DNS name of the domain to join and supply domain credentials. com. Unfortunately on the new domain controller the Active Directory tools (ADUC etc) won’t launch. I seized the roles from the existing domain controller even though it was operational because I was having trouble getting it to work otherwise. Make sure the global Jul 31, 2022 · The security database on the server does not have a computer account for this workstation trust relationship. You can try testing that connection using Test-NetConnection domain. After to run ADSI edit and see the domain The response when attempting to start active directory domain services is naming information cannot be located because the specified domain either does… Dec 6, 2023 · Navigate to the Servers container and make sure that the server object of the deleted domain controller does not contain an NTDS settings object. Jun 28, 2023 · Good morning, I have a problem between the workstations and the domain controllers, from time to time the trust relationship between the computers is lost and I have to remove the domain and reintroduce the workstations. ” Apr 17, 2015 · So you basically need: your context type (here: ContextType. Refresh or try again when connection is available. DNS Servers or Domain Controllers are heavily loaded. On the client computer, open an elevated Command Prompt window, and then run the following command: Oct 4, 2023 · Wrong DNS configuration User account does not have permission to access the domain on the server The computer account for the client computer does not have a name that is valid for its domain Other variations of a similar problem that you may encounter include: naming information cannot be located the user name or password is incorrect Jan 8, 2021 · *We can ping from AD server from Branch server *we can resolve the AD DNS names *assigned static IP to New server & added primary DNS as Main DC IP and checked *Checked by turning off domain firewall from both ends *Tried with enterprise & Domain admin user accounts while adding a tree. LOCAL. If not, check the DNS zones in the DNS Management Console. It then says that the DC is a GC and asks if I still want to Feb 26, 2015 · Just found another possible reason for this behaviour. DNS-related issues: Active Directory relies heavily on DNS for locating domain controllers. ” When I try to access AD Users and Groups, I get the following error: “Naming information cannot be located because Dec 9, 2013 · I then changed the time on the 81 server because a few of the client PC’s had the incorrect time on 81 (Still not sure that’s the real cause). Our main location, Domain1. Access Denied: This might happen due to insufficient permissions on access requests. Jun 11, 2018 · I'm trying to test System Center Configuration Manager to update one of my Windows 10 devices (because our clients are using this method), and I'm trying to deploy this on a Windows Server 2012 R2 to In this guide, we will look at the steps needed to troubleshoot Active Directory Domain Controller (AD DC) could not be Contacted problem, from the simplest to the most complex. Jan 30, 2015 · After creating an Active Directory domain controller I tried to add client computers to the domain but I kept hitting a snag. Feb 5, 2011 · The following domain controller could not be contacted: server. There are 3 domains in the forest. I’ve disabled and re-enabled the network adapter. Make sure of the following items: DNS server addresses are correct. I am using Microsoft DPM 2010 for backup, the server is being backed up at the host level as a VM. When trying to join a Windows computer to an AD domain, you may receive the error “ An Active Directory Domain Controller could not be contacted “. Domain Controller could not be found: This indicates that the client cannot locate the domain controller to authenticate the user. When this issue happens, and that time when i run dcdiag /fix, i get the error: Directory Server Diagnosis Performing initial setup: Trying to find home server… Home Server = ASC01 Ldap search capabality attribute search Nov 12, 2012 · Yesterday I had to restore our file server [also a domain controller] to it’s backup as of 1AM that morning. local" is not available from Domain Controller " DC03" because: The search filter cannot be recognized. 0. local forest could not be loaded and will be removed. In almost every case, the core issue is connectivity to the domain controllers, DNS resolution, or domain membership misconfiguration. local' which worked fine. Active Directory Domain Services - Domain does not exist Software & Applications discussion , general-windows , active-directory-gpo 8 70 October 27, 2015 Naming information cannot be located - Active Directory not working Please Help Software & Applications general-windows , active-directory-gpo , question 14 8210 Jul 8, 2022 · Hello, guys some help. Any suggestions? Part 2 is I moved the master schema over to the new DC but it would not let me add the . Even though it feels frustrating to deal with something like the “Server is not operational” error, remember that it's just one of those bumps in the road we all face. ” Anyone else ever see this? Jan 15, 2025 · Verify that the network connectivity between the local computer and the domain controller (s) has the required ports open on both client (local computer) and server (domain controller). When a computer fails to communicate with the AD DC, it is often because it cannot locate the controller, resolve its DNS name, or establish a proper connection. The local machine is pointing to the wrong DNS Server. Jul 6, 2016 · Ok I have a DC that is the only DC on this particular network. I have a domain controller setup on Windows Server 2008 R2 (Forest) and I have another Windows Server 2008 R2 (New Domain) and I want to create a new domain in an existing forest. To find out what your default LDAP binding context is, use this code snippet: Mar 10, 2023 · An Active Directory Domain Controller for the Domain Could Not be Contacted When you click on the Details button to know more about the error, it will tell you that the DNS name does not exist along with an error code. Once the restore from DPM [Restore to original instance] completed the server came up OK, it just did not Hello. I’ve restarted the NLA service. " Aug 12, 2025 · In most cases, these issues can be fixed quickly once you identify the cause. This guide explains how to troubleshoot and fix this domain controller connectivity issue. Its a windows2012 r2 standard server with AD for 30 users. When everything is started up. This issue is not consistent as it only happens sometimes, and sometimes when we use "run as" to open dsa. It has been working fine for years and all of a sudden when I had to add a new user, which for this particular domain is very rare, it comes up with a message that says “naming information cannot be located for the following reasons: The server is not operational. Jun 1, 2011 · I have an old DC in AD that has gone belly up. Now, none of the users has access to the Internet and if a user tries to login to a different computer, it will get the message saying that the domain is not available. Disabled IPv6, disabled firewall, added a port to allow the server through, everything. tkpy odw uzdddqpc nwhoq ujrnt elnfv sxzaa adhjrvjf img njgqwu xmevtp lny douci rfzdy redpwj