We had brownouts here too. Need to get Comcast out, our cable runs a little slow and drops a little more often than it should and I suspect that if they came out it would all be fixed, but it's not too bad so we don't call /ubbthreads/images/graemlins/tongue.gif
Honestly though, our cable internet has been dead reliable. It's been on 24/7/365 for the past 4 years probably, and out out of those 4 years we've probably been without service for about 60 hours, including both the @home to attbi, and attbi to comcast transfers.