router

I have a linksys router that is not connecting to the internet http://tinypic.com/r/vybpck/8 and when I tried network troubleshooting it gives this error http://tinypic.com/r/e6tai0/8. I have unplugged the router, replugged it in, and nothing. So I hooked it up to the computer with ethernet cable still no internet, yet hooked to the modem I have internet. I cannot call my isp with the issue as the router is not issued though them. I was online when this happened(so it has worked before) and I brought the router new about 3 years(in Dec will be 3 years) ago. If i unplug the Ethernet to the router and leave it out for about an hour or more then I have internet again. Same goes for unplugging it at the power strip. Do I need to look at getting a new router?