I think we have talked about this before, but it bears repeating. When your Internet connection stops working suddenly or seems to be acting strange, don't immediately assume it is a problem on your end. Often times it is not a problem with your system at all. If this happens to you, follow these steps instead:
For high speed Internet connections, read our tip [1] for troubleshooting your connection for more information.
Links:
[1] http://www.helpmerick.com/troubleshooting_your_high_speed_internet_connection.htm
[2] https://www.paypal.com/cgi-bin/webscr?cmd=_xclick&business=rick@yourpcpartner.com&item_name=Buy
[3] http://www.helpmerick.com/node/1089
[4] http://www.helpmerick.com/node/1081