Darren Straight's Blog

ICT Enthusiast and photographer.

By - Darren Straight

Windows Vista Remote Desktop Authentication Certificate Error

For some time now I’ve been trying to use Windows Vistas Remote Desktop Connection Application to remotely connect from one Computer with Windows Vista Ultimate installed to another Computer with Windows Vista Ultimate installed on the same local area network and workgroup.

But every time I try to connect to the other PC from either the first or second PC I get the following message:

“The authentication certificate received from the remote computer has expired or it not valid.”

And the thing is I’ve tried pretty much everything from Windows Vista’s Online Help (here) to a Windows Vista Remote Desktop Connection Authentication FAQ post by the Terminal Services Team (here) and lots more… and still no luck!

So I’m hoping that someone can help me out here, there has to be someone that has experienced exactly (or very similar) the same problem as me and managed to fix it.

Thanks in advance for everyone’s help.

12 thoughts on “Windows Vista Remote Desktop Authentication Certificate Error

Scott March 5, 2007 at 5:45 pm

This isn’t a KB for Vista, but it sounds similar to something I ran across previously working on a couple of servers. Might be a good starting point.?.

http://support.microsoft.com/kb/323497

Good luck and please don’t forget to list whatever solution you end up using.

Sergey Kuzin March 5, 2007 at 6:35 pm

This is usually caused by time discrepancy between client and server. Synchronizing the time should help.
Another possible cause: The server did not have the time set correctly during setup. Rebooting your server after setting the correct time should help in this case.
If this does not help either, try the following:
1. Start mmc.exe and open Certificates snap-in for local computer account.
2. Navigate to “Certificates\Remote Desktop\Certificates”
3. Delete certificate that’s in this store.
4. Reboot the machine.

Thx,
Sergey.

Darren Straight March 6, 2007 at 4:52 pm

Thanks a million Sergey, it was a time discrepancy problem and it’s all fixed now! 😀

And hey thanks Scott for trying to help too. 🙂

Chris A September 14, 2007 at 8:01 pm

I did realize RDP needed time synchronizing in order to get them to work properly.

Is there any way to disable this?

You see, i have these demo softwares that work for 30 days and they are chemical simulation softwares that normally take over 60 days to finish a single calculation!

The way I found out to make the demo work indefinitely is by changing the date. (in case you are concearned with me using software illegaly, I can tell you it’s supervised that all chemical calculations once published need to have a fully purchased licence, which I will, once I see these softwares are good enough for me)

Thanks anyway

Jared September 17, 2008 at 3:22 am

Deleting the cert and rebooting fixed my issue. Thanks so much!

ERic January 13, 2009 at 5:13 pm

Hi, where in Windows 2003 Server can find the certificate to delete it ?

thanks

Shailesh March 10, 2010 at 4:22 pm

Hello,

The same problem i was facing since a week and i had even tried microsoft technet forum but could not get answer.

I’m glad i got expected answer from your blog.

Thank a lot.

Best of luck…!

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