Can not access SOME web sites

This is really strange. None of my browsers will load walmart.com or target.com on my laptop via my wireless connection at home. I can connect a Verizon MiFi and connect fine. 3 other computers using the same connection have no issues. Every other site I have tried connects with no issue. With these, I get no response. Not even a 404 error, just a white background in the browser. I have done the following:
ran anti-spyware
ran virus checks
ran malware checks
flushed DNS
reset modem and router
checked hosts file
ipconfig /release /renew

Any ideas?

I used a mifi from Verizon, which is a wireless connection. That worked fine. It is only my home network that is the issue. I even connected directly to the modem with no success. That should eliminate the router. With 3 other pcs on the same home network connecting to those sites and mine not, it doesn't make much sense. Especially since it is only if I go through the modem to access them.

No. Same result. Just a white background and no page
eventually it came back with "bad host name"

The image loaded, and I have tried firefox, chrome and even IE11

Just the windows firewall, and I have tried it with this turned off. Same deal