Authentication with Domain not functioning

[WCGSTech]

We have been using Veyon for years with no issue. However, we came in today and now we can no longer log into the master, nor does the 'Authentication Test Button' in the Veyon Configurator work. We are using Windows 10/11 on the computers and have a Windows Domain that controls our network. We didn't do any updates or anything over the weekend, so we're quite confused as to what may have occurred. Any suggestions/help would be greatly appreciated.

[fred]

@WCGSTech
Hello
If you use a certificate for SSL authentication it is possible that the certificate has expired, you must renew the certificate with the same key.
Fred