Well i have never played, heard or have been interested in SFO but i would imagine there will be info common to all issues of this nature. So I will ask for the sake of ppl that do know about SFO:
How are you connected to the internet? Cable,ADSL
How many devices connect through the same device and do they work OK?
Is the issue instant intermittent or random?
Have you disabled all the AV and firewall sofware
Have you reset your TCP Stack
Have you powered off your modem or router
without moe detail though its impossible to male any choices. Get your machine going and describe the issue in detail. I.E. When does it disconnect? Or does it not even connect. help us help you