Yep, and it is not the browser. I have tested this extensively with different browsers. Some browsers are easier for them to block than others. But it all starts with them attempting to block it. Here is another one... I have also noticed that there can be a difference between one IP server and another when they shove random dynamic address access on you.
The blocking is worse on some of their servers than others, I can disconnect and reconnect hooking through a new different IP server and address and it is fine. I now have the problem addresses logged so that I can tell right off hand I will probably have trouble using that one. So I disconnect and reconnect until I get through a good one.
The issue is usually an issue with the DNS server.
I’ve never used one not in my local network, but there are public DNS servers that can be added to the browser that bypass the DNS server of the local provider.
Not sure if that would improve any of this.
My issues with the local internet provider got bad enough that they gave me a new modem. (made in China) It solved the problem of constantly having to reconnect to the system, but the blank page issue grew a lot.