You might as well ask me "What is the sound of one hand clapping?" What I can tell you is that there is a 99% chance that it is your computer that is the problem. Over the past 7 years aside from rogue DHCP servers we have only had a handful of problems that were related to the network. Most of those where related to damage done by students to the jacks in the wall. You should run through the Instructions for Connecting to the Internet to check your settings and make sure they are correct. You should also check that you have a valid network connection. If you do your problem is probably related to spyware or viruses on your computer.  You can download software to help you with those from our downloads page.