Previous it worked correctly to run a program with other privileges using the "Run as" option in the context menu of program links. I mainly used this for accessing as domain administrator.
Since a small period of time I now always get a weird message box "Login not possible: Unknown user or password".
Created attachment 4320 [details]
Also here a wireshark trace
Created attachment 4321 [details]
A logfile of SAMBA 4 debug level 10
Interesting is the fact that the problem doesn't always happen. Maybe there is some kind of race conditions or uninitialised variables?
This error doesn't occur only on "run as" actions, but also e.g. on domain logons.
I retested it now several times and didn't suffer anymore the strange error. Maybe it had to do with problems in "talloc" fixed now?