Hi,after installing SP2 for WinXP i had the following problem after conneting to Vatsim via SB2:"after about 1 or 2 minutes, max. 5, a message appears: "squawkbox has left the session" And in sbrelay it reads "Removed player 'Squawkbox' from FS2004 session"."Now i solved the Problem:Start SBRelayStart FS2004, Multiplayer, Start Session, Client Settings, Change both Ports to "other" and enter 23457 (not default 23456), if you use a Firewall, open these ports too.and then all other ...I stayed online today for more than one hour, without any problems.Gottfried

Thanks for the update.

There's also another sollution which worked for me. When squawkbox asks you to search for a multiplayer session, type in the internal IP adres like 127.0.0.1, instead of only pressing search and then press "join the multiplayer session".