The mentioned patch by Joe Clifford (joeclifford) seems to be OK. I've downloaded source of pidgin-sipe (with apt-get source), also I applied the patch. After building a deb package and installing everything worked again with Ubuntu 15.04 (32 bit).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1488336 Title: authentication failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pidgin-sipe/+bug/1488336/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs