Login-Problems with AD and RDM from time to time

Hi together,

since a couple of weeks we have a reoccurring problem with the Remote Desktop Manager. From time to time it happens that we cannot login anymore into the datasource (Devolutions Server, MS SQL Database on another Server) at all, only after a complete OS restart it is possible to login again into the datasource. We had this problem at least since 12.0.8.0 (Server: 4.0.7.0) and now with 13.0.6.0 (Server: 4.7.1.0) as well. The message that we receive when this problem happens is "The username or password is incorrect", although the information was properly entered.

FYI, we do have an Active Directory connection for our user management and the users can login into other applications with their AD-User without any problems at the same time.

To find the source of the problem i enabled the debug logging in the datasource and checked the log, but so far i cannot do anything with that information that i found there.

As far as i can see the interesting part in the error log starts with this error (Attachment: RDM_log_2018.01.18_05_47PM.log) as far as i can tell the problems start from there and the error message is quite global (Invalid syntax). It then continues with this error (Attachment: RDM_log_2018.01.19_04_04AM.log) where the server is not reachable and the error "the server is not responding" gets logged (probably because of a backup-task in the night).

In the end i can see this error (Attachment: RDM_log_2018.01.19_06_12AM.log) where it tells me "UserName contains bad domain : RW" where RW is our domain name.

Since i wasn't able to find any information about the error messages above I'd like to ask here if you could help me resolve this problem.

Thanks a lot in advance!

Best regards,

Hermann