This started out as a Win 7 issue, but in frustration I installed Win 8 in hopes that a fresh install might fix the issue. No luck there. It is a Lenovo ThinkCentre Edge. It came with Win 7 installed and Win 8 Disks. I have several machines on my home network. This is the only one affected and it had been working fine for a year or two. I am not aware of any new software having been installed in the last several weeks (aside from Windows Updates).
I can ping from command line but I cannot browse. I've checked my IE settings against another machine that is working. There is no proxy. I installed Chrome (from a thumb drive) and I get the same result. In each case, the page will try to load for several minutes and eventually come back with a page unresponsive error. I can open HTML files on my hard drive but cannot even browse to my router. I cannot browse by IP. I have released and renewed my IP address and flushed DNS. IPv4 and IPv6 are both configured to used DCHP. There are no entries in my hosts.ini file. I have run McAfee Stinger and Norton Removal Tool. I've rebooted countless times and even, as I've said, installed a new operating system.
I'm stumped. Is there anything else I can do short of junking this thing and getting a new computer?