Got the following setup: Linksys 4 port modem router (model no: WAG54G-XW, 5 port belkin switch plugged into it.
For the past few weeks I have lost the connection every few hours or so, this is a bit annoying but not a 'big' problem.
However, now when I plug my laptop into either the router or the switch I get a box saying that the connection has limited or no connectivity. It says that it can't get an IP address from the DHCP server (router), so now I can't access the internet. I have checked the cable by using a different one, and indeed plugged it into a different port on the router.