Wireless router problem

I recently had to perform a total recovery on my computer. I'm not sure that has anything to do with the problem,but after I got everything back up and running I am now having a problem with my wireless router (netgear wgr614v6) When I boot up the computer the connection to the router is strong, but only lasts for a period of between 2-4 minutes when I lose the connection and it does not return until I again reboot. I've not seen this particular problem on any tech support sites can anyone help.