Random logout of battlefield 3

Please provide us some information about your internet connection and your system which you are using to play BF3.

You should check the ports of your router, if this doesn't solve your problem, please respond to that topic.  

 If you are playing on PC, please enable the following online ports on your connection:
TCP: 80, 443, 9988, 20000-20100, 22990, 17502, 42127
UDP: 3659, 14000-14016, 22990-23006, 25200-25300

If you are playing on PS3, please enable the following online ports on your connection:
TCP: 80, 443, 9988, 10000-10100, 17502, 42127
UDP: 3659, 14000-14016

If you are playing on Xbox 360, please enable the following online ports on your connection:
TCP: 53, 88, 3074
UDP: 53, 88, 3074

For specific instructions on how to open your ports, please visit http://www.portforward.com/ or contact your router manufacturer.