Network registration fails

Hi I've a problem with the mobile application since ~1 month. Registering in the network always fails and I don't have any idea why. It used to work in the past, but currently it is not working. Independently from the osmocom version i use (even the version from december 2011 which had worked once now always fail). I am using a C123 with an ftdi cable and the testing branch from sylvain. I tried sim cards for Vodafone/O2/Eplus. The related outputs/logs are the following: Output on telnet interface: OsmocomBB# % (MS 1) % Searching network... % (MS 1) % Trying to registering with network... layer 1 output: http://pastebin.com/c0AhJ3gt mobile app output: http://pastebin.com/vP0YPfpT Any suggestions are appreciated! greetings Philip