Seems like that your issue is more related to your connection aka PC and not to the gameserver.
It could be an issue with Punkbuster. But at first, please check if BFBC2 is in the exception list of your antivirus/firewall software. You can try to check the game while your protection software is disabled.
Check the online ports of your modem:
TCP: 18390, 18390, 18395, 18395, 13505, 13505
UDP: 18395, 18395
For specific instructions on how to open your ports, please visit http://www.portforward.com/ or contact your router manufacturer.
Check and update your PunkBuster software. It could be that the PB service crashing your game without an error message.
Please let us know if the issue is solved or still exist.
Cheers
Basti
