An internal error has occurred (error 50331656)

[guest]

I have use RDP to access my windows SBS 2008 RWW for a while. Today, when I do the same thing, my connect lost with this message: An internal error has occurred (error 50331656). What's the problem?

[guest]

I found this fix in the Internet:

This one had me stumped for a while - remote web workplace on our EBS system had been working fine, but suddenly stopped working. I could login to RWW no problem, pick a machine from the list and try and connect, but would then get a dialog with "An internal error has occured (error 50331656)."
Searching online found virtually nothing related to this message other than someone having a RWW issue on SBS.
After some investigation ourselves then involving the EBS TAP support team, we tracked it down to the lack of a certificate on the Terminal Services Gateway. This Server 2008 role is installed on the Messaging server. After assigning the correct certificate, RWW works perfectly.
I later realised what caused the problem - we had a certificate on our EBS messaging server which didn't include autodiscover.domain.com and autodiscover.domain.local so we created and assigned a new one, while deleting the old one.
We didn't realise that this certificate was also assigned to the TS Gateway and deleting the certificate left it without one assigned.

[guest]

Or try this one:

After investigation, we find we even cannot use normal Remote Desktop connection
from inside domain to these workstations. The error is 'This computer can't connect
to the remote computer'

For this error message, it is the problem of the workstation Terminal Services. We
rectify the problem by editing the following registry key on workstation and
restart the machine.


HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TermService\Parameters

Under the Parameters registry subkey, right-click each of the following values,
click Delete, and then click Yes to confirm the deletion:

Certificate
X509 Certificate
X509 Certificate ID