Do I simply dont find it anymore or is the STUN-server setup gone again in 2.6.1? I could swear it could be configured from within Spark in the nightlies a few days ago? Is the loginserver now included by default as a possible STUN server? Does Spark 2.6.1 consume correctly the list of STUN servers sent by openfire? Any way of checking, which STUN server is being used besides using Wireshark?