@LYang018 VPN was already turned off when I typed the original question. I turned VPN on today and the CVS web site worked fine, even with location set to optimal. Go figure. That's counterintuitive.

@leocg I enabled VPN and left the location setting to optimal.

@leocg Weird how Opera is working. This is quite counterintuitive. I enabled VPN and have no trouble accessing cvs.com now. Yeah. It's working backwards.