When trying to restore data or performing a scan, I get the following error:
E3841 Unable to find session number, EC=Error session active
In the log file I see the following line:
[12/20 10:38:38 0ce8 1 TK 3472 6] FSD: FSD_ClientGotoSession(): Open session file failed JobID[3472] DeviceNumber[8] Session[1] MS=5
Backups are stored on a NAS, accessed by Windows share.
What is wrong?
The problem was caused by wrong ACL settings on the NAS. It was the MS=5 part of the error message that guided me in that direction because error 5 is mostly security/ACL related.