Forum Discussion

VeeDub1's avatar
VeeDub1
Copper Contributor
Oct 01, 2025
Solved

RDP from W11 to W11 computer fails with invalid credentials error. But credentials are correct.

Hello, I'm unable to RDP from one W11 computer to another in a Active Directory domain environment. The error reported in the RDP app is: The login attempt failed. Your credentials did not work...
configuration
security
  • VeeDub1's avatar
    VeeDub1
    Oct 04, 2025

    Hello,

    Thanks for the responses.

    I eventually worked out what the issue was.

    Both of the computers have been imaged (but not using sysprep).
    Apparently with W11 RDP uses the computer SID, this is a change from W10.
    So the resolution in my case was to use SIDCHG to change the SID.

    Thanks again.

Walid_91's avatar
Walid_91
Copper Contributor
Oct 02, 2025

Hi, 

You might need to consider checking the following: 

1- You may need to explicitly allow credential delegation via Group Policy  as might be a missing delegation or missconfigured :

  • Navigate to:
    Computer Configuration > Administrative Templates > System > Credentials Delegation
  • Enable:
    • Allow delegating saved credentials with NTLM-only server authentication
    • Add TERMSRV/* to the list of allowed serve

2- Ensure using the the correct format that include the correct domain example: Domain\username or mailto:username@domain.local. 

3-Check the local security Policy permissions and confirm that the user is allowed to logon via RDP: 

  • Run secpol.msc as admin
  • Go to : Local policies > user rights assignement > Check allow log on through remote desktop services then add the user. 

4-Might be a DNS resolution issue, try via the IP Address or via the hostname. 

5-Try adding manually the credentials into the credential manager : Control Panel > Crendentials Manager > Windows Credentials > Add: TERMSRV/Hostname or TERMSRV/IP with correct domain credentials. 

              cmdkey /generic:TERMSRV/192.168.0.33 /user:DOMAIN\username /pass:yourpassword

Hopefully my troubleshooting steps helps you resolved the issue. 

Good luck.

Walid

 

Resources