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RDP error “The function requested is not supported”

8 Jun

I had the same issue. I found the issue has to do with a Windows Update patch that was pushed out to my work station in last nights Windows Updates. There was a critical CVE (CVE-2018-0886) for RDP which required a patch to fix.

If you workstation is patched, but your server isn’t, your workstation will fail to connect.

Quoting from the following blog website with information about the issue, you’ve got three options:

  • Patch your target computer for CVE-2018-0886 (Recommended)
  • Enforce the Vulnerable parameter on the source computer (Not recommended)
  • Disable NLA on your target computer (Not recommended)

I didn’t have alternative access to the server(remote access only), so I had to chose Option 2 so I could go do the updates on the server.

I opened the start menu on my work station, searched for “group policy”, clicked Edit Group Policy. Then following Microsoft spec, Go to “Computer Configuration -> Administrative Templates -> System -> Credentials Delegation”, then :

  • Setting Encryption Oracle Remedation set to “Enabled”
  • In Options below, set “Protection Level: to Vulnerable

Slow RDS Server

24 Nov

Great article here

Fairshare can reak havoc with certain apps so worth checking out



Remote Deskop Servies is currently busy

16 Nov
Rds Error

Remote Desktop Services is currently busy

If you ever see this error when a user is trying to log on to a Remote Desktop Server:

The task you are trying to do can't be completed because Remote Desktop Services is currently busy. Please try again in a few minutes. Other users should still be able to log on.

Log on as an Admin
Load Remote Desktop Services Manager
Switch to “Processes” tab (the user won’t be listed in the Users or Sessions tabs)
End any processes listed for that user

This is usually a Group Policy process getting stuck

Once the processes have ended, the user will be able to log on fine.



Full credit for the solution here