Hotspot problem with Z10

I love my Z10. But when I am using the hotspot and working on my Dell Laptop it won't let me go to certain websites. Specifically the Verizon Wireless and the Marriott sites. It will open the home pages but when I try to go to another page, like to upgrade a phone or make a reservation, I get an error. "ERR_CONNECTION_REFUSED". It only happens when I use the hotspot. When I am using a wireless connection I don't have this problem. Any clues??? Is it my phone or some settings in my laptop?? We have tried resetting the proxy with no luck. thanks,

It might be the websites you are going to. They must sense the connection type you have and consider it unsecured?

Sounds like your proxy.