http://answers.microsoft.com/en-us/windows/forum/windows_7-networking/cannot-access-internet-connection-after/31dc3883-9004-4253-a51d-3e4fd789af8d?auth=1
Got it to work by doing the following From cmd.exe ran as admin
ipconfig /flushdns
nbtstat -R
nbtstat -RR
netsh int ip reset c:\resetlog.txt
netsh winsock reset
exit
Rebooted after that and access came through.