HP Pavilion shows internet access but won't open websites

I am working on a Pavilion P7-1410 desktop which shows having a good internet connection but won't open any websites. I have tried adding a wireless usb device with same results. Error "the remote device or resource won't accept the connection"
I also get DNS server not responding. I tried the diagnostics on this Windows 8.1 system and it only shows Port issue 316 .
I did flush DNS without any change. My other computer connects fine. TCP/IP properties show obtain auto on ip and dns
Thanks for any suggestions