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Procedures to raise the functional level of AD 2008 r2 to 2019
Hello everyone, Our AD has the Windows Server 2008 functional level and the servers with Windows Server 2016 OS. I intend to raise the functional level to 2019 or 2025. I would like your help with tips and documentation to decide whether 2019 or 2025 would be best, what are the risks and procedures for successful migration. I have an isolated environment to carry out rehearsals and tests before actually going into production.Marcelo327Apr 14, 2026Occasional Reader9Views0likes0CommentsVirtual printer in windows server 2019 standard is not shown after configuration
Hello, I am, trying to configure a virtual printer in a Windows server 2019 standard edition that is deployed in OCI cloud. This instance has windows server license included in the pricing. The problem comes when after ending the process of configuration this virtual printer is not displayed in "Devices and printers" any idea why is this happening? Regards, AnaAnaRuiz1Apr 14, 2026Occasional Reader13Views0likes0CommentsLogin failure from tssdis.exe on RDS server
Remote desktop server in AD environment [Windows Server 2019 standard, running RDweb, RDG, and session host, etc] periodically has service tssdis.exe (remote desktop session broker) failing to login, Event IDs 4648 and then 4625 about half a dozen times before stopping. This doesn't appear to affect any users, but I can't find anything online addressing it or if it's something that needs to be fixed. Some other people have reported the problem but not the solution, such as here: https://social.technet.microsoft.com/Forums/windowsserver/en-US/26e48e81-1400-4f8c-aef2-df03143fa211/login-through-tssdisexe Below are two exports of the event IDs (sanitized) This is the 4648 A logon was attempted using explicit credentials. Subject: Security ID: NETWORK SERVICE Account Name: SERVERNAME$ Account Domain: DOMAIN Logon ID: 0x3E4 Logon GUID: {10b9db0d-f9e0-e3ab-8c95-7dcb4ec5b3c7} Account Whose Credentials Were Used: Account Name: SERVERNAME Account Domain: DOMAIN Logon GUID: {00000000-0000-0000-0000-000000000000} Target Server: Target Server Name: SERVERNAME.DOMAIN.local Additional Information: SERVERNAME.DOMAIN.local Process Information: Process ID: 0x17c8 Process Name: C:\Windows\System32\tssdis.exe Network Information: Network Address: fe80::xxxx:f30a:xxxx:xxxx Port: 49667 This event is generated when a process attempts to log on an account by explicitly specifying that account’s credentials. This most commonly occurs in batch-type configurations such as scheduled tasks, or when using the RUNAS command. This is the 4625: An account failed to log on. Subject: Security ID: NULL SID Account Name: - Account Domain: - Logon ID: 0x0 Logon Type: 3 Account For Which Logon Failed: Security ID: NULL SID Account Name: SERVERNAME Account Domain: DOMAIN Failure Information: Failure Reason: Unknown user name or bad password. Status: 0xC000006D Sub Status: 0xC0000064 Process Information: Caller Process ID: 0x0 Caller Process Name: - Network Information: Workstation Name: SERVERNAME Source Network Address: fe80::xxxx:f30a:xxxx:xxxx Source Port: 50798 Detailed Authentication Information: Logon Process: NtLmSsp Authentication Package: NTLM Transited Services: - Package Name (NTLM only): - Key Length: 0 This event is generated when a logon request fails. It is generated on the computer where access was attempted. The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe. The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network). The Process Information fields indicate which account and process on the system requested the logon. The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases. The authentication information fields provide detailed information about this specific logon request. - Transited services indicate which intermediate services have participated in this logon request. - Package name indicates which sub-protocol was used among the NTLM protocols. - Key length indicates the length of the generated session key. This will be 0 if no session key was requested.ExceedKevinApr 13, 2026Copper Contributor30KViews1like15CommentsError al agregar Windows Server 2025 a dominio existente, nivel funcional 2016
Buenas a todos, Me dirijo a esta comunidad en busca de orientación para resolver un problema que se me está presentando al intentar integrar un nuevo servidor con Windows Server 2025 Standard a mi infraestructura de Active Directory existente. Descripción del entorno: Dominio de Active Directory activo con Windows Server 2019 Standard. Nivel funcional de dominio y bosque configurado en Windows Server 2016. Controladores de dominio actuales: server-dc01.impresoratec y server-ad2019.impresoratec. El nombre de dominio interno utilizado es impresoratec (nombre NetBIOS/dominio de etiqueta única, sin sufijo DNS completo tipo .local o .com). Problema: Al intentar agregar el nuevo servidor con Windows Server 2025 al dominio, el proceso falla y se presenta el siguiente mensaje de error: "Es posible que el nombre de dominio "impresoratec" sea un nombre de dominio NetBIOS. Si este es el caso, compruebe que el nombre de dominio está registrado correctamente con WINS. [...] La consulta se refería al registro SRV para _ldap._tcp.dc._msdcs.impresoratec. La consulta identificó los siguientes controladores de dominio: server-dc01.impresoratec y server-ad2019.impresoratec. Sin embargo, no se pudo contactar con ningún controlador de dominio." El mensaje sugiere que los registros de host (A) o (AAAA) pueden contener direcciones IP incorrectas o que los controladores de dominio no son accesibles desde el nuevo servidor. Lo que he verificado hasta ahora: Los controladores de dominio existentes están en línea y operativos. La replicación entre los DCs actuales funciona con normalidad. El nuevo servidor con 2025 tiene conectividad de red general, pero no logra localizar los DCs al momento de unirse al dominio. Mi consulta: ¿Alguien ha experimentado este comportamiento al incorporar un servidor con Windows Server 2025 a un dominio con nivel funcional 2016 y un nombre de dominio de etiqueta única (single-label domain)? ¿Existe algún requisito previo adicional —como la actualización del esquema de AD, ajustes en DNS o en WINS— que deba cumplirse antes de agregar el nuevo DC? Agradezco de antemano cualquier orientación o experiencia que puedan compartir.HugoPerezApr 11, 2026Copper Contributor11Views0likes0CommentsSide-by-side Upgrade: Server 2012 R2 Foundation to Server 2025 Essentials
Hello everyone! Is a side-by-side upgrade from Server 2012 R2 Foundation (DC) to Server 2025 Essentials (DC) allowed? Is there a guide to follow? Thank you in advance.V3N7UR4Apr 10, 2026Copper Contributor41Views0likes1CommentRDS Licensing for administrators
Hello, We are planning to acquire 10 RDS User licenses, and I would like to clarify the following points: Will access be limited to 10 simultaneous rdp session, or can administrators still access the server normally via RDP? Do administrators connecting using mstsc /admin require an RDS license, or is this access exempt? In the past (Windows Server 2016), I recall that exceeding the number of licenses allowed temporary RDP sessions. Could you confirm if this behavior is still the same? Thank you in advance for your clarification.MasPAN74Apr 07, 2026Brass Contributor91Views1like3CommentsRDP logs in locally
Hi all, Have a Windows 2022 21H2 server, VM on vSphere. When attempting to RDP to it, I briefly see the desktop before getitng the error - you have been disconnected because another connection was made to the remote computer. I note that when viewing the server in vCentre, the 'local' desktop logs in when an RDP connection is attempted. This must then be kicking the RDP session. At the moment the only way to manage it is via vCentre which isn't ideal. Is there a setting somewhere to prevent this from happening? cheers jjustletmelogin50Apr 01, 2026Brass Contributor48Views0likes1Commentntoskrnl.exe and build version not getting updated after applying KB5078740 on server 2025
I have installed the latest March patch kb5078740 on server 2025 which was upgraded from server 2022. the patch is showing installed but the ntoskrnl.exe and build version is still showing 10.0.26100.4652. Qualys is detecting it as patch not installed based on file version which should be 10.0.21600.32522. Please let me know how to fix this issue.aahmed28Mar 31, 2026Copper Contributor252Views0likes0Commentsdcdiag crash with incorrect /s parameter
Hello, I find a mistake in my script which cause DCDiag to crash : dcdiag /v /c /d /e /s:%computername% > C:\Temp\dcdiag.txt %computername% is the mistake. I replaced it by the real server name. Seems like input it not enough checked. VincentSolvedVincent_DuvernetMar 31, 2026Copper Contributor43Views0likes1CommentComo hacer el Donwgrade de Windows Server 2022 Standard a Windows Server 2019 Standard, es posible??
Tengo que adquirir 3 licencias para 3 servidores dell nuevos comprados con un distribuidor, pero no encuentro localmente licencias de Windows Server 2019, unicamente Windows Server 2022, y para la aplicacion que se desea correr unicamente puedo usar 2019. Se puede hacer el Downgrade de esta version? y alguien sabe cual es el proceso???.....PC_ZONEMar 27, 2026Copper Contributor4.8KViews0likes5Comments
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