Hello,
Great that it seems to be clear now why sometimes session are lost.
I've upgraded to the latest version of X2go, but after the upgrade I cannot login anymore. I've removed x2go completely with a --purge and reinstalled it again. But it's not possible to login, hmmm.
In /etc/group there is no group "x2gousers" anymore. Maybe I don't know how to add a user, but I don't find documentation about how to add a user on the wiki.
With regards, Paul van der Vlis.
-- Paul van der Vlis Linux systeembeheer, Groningen http://www.vandervlis.nl