I use NordVPN. I try usually to use their servers in my own or nearby states to minimize distance traveled. Some sites simply give me the PR_END_OF_FILE_ERROR & "The page you are trying to view cannot be shown because the authenticity of the received data could not be verified." Some NordVPN servers will work, but you have to hunt. I also get rejected on the same sites with IE 11 (on Windows 7 SP 1) and Waterfox. All of the sites are reachable if I turn NordVPN off. Any advice?