Thanks for the report, Jan. Do you reproduce on one/several of 12.04, 14.04, 15.04 and 15.10?
Also, this may be a duplicate of <https://bugs.launchpad.net/ubuntu/+source/pidgin/+bug/1377668>. ** Changed in: pidgin (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pidgin in Ubuntu. https://bugs.launchpad.net/bugs/933474 Title: XMPP account can't login: "not authorized" Status in pidgin package in Ubuntu: Incomplete Bug description: For several months I use Pidgin (now 2.10.1) successfully under Windows. Recently I copied the profile folder ("purple") to my Ubuntu 11.10 computer which has Pidgin 2.10.0-0ubuntu2 and surprisingly I can't login to my XMPP account on that machine. Pidgin tells me 'not authorized' (Nicht autorisiert) even though the very same account profile still works under Windows! I verified the password several times and it's correct. Afterwards on Ubuntu I removed the account and added a new XMPP account with the same and verified credentials but still the same problem. Attached is the debug. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pidgin/+bug/933474/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

