PC Internet Connection won't reconnect

After losing my internet connection, my PC automatically reconnects but I cant reach the internet. I've tried using the troubleshooter and it tells me that it's working fine. I've tried clearing and resetting the dns cache, that didn't help. I've disabled the network connection and re-enabled it but still no luck. I am hard wired to the modem and all wireless devices work fine. The only way I can get my PC to connect to the internet again is to reboot it. I am running on windows 8; 64 bit - Dell PC. Any help would be appreciated.
 
First, look for updated drivers for the NIC & WiFi

go to the Dell site, look for Support
 
What browser do you use? Try resetting IE to default settings since they all run off of IE..
It's not the browser that's having the problem - - the router is failing in the release/renew protocol on the WAN side.
 
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