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.
Know what friend? I have been playing with the P2P desktop client protocol for a few weeks now using “Zeronet”. Takes just a minimal amount of effort to set it up, but it bypasses it all and flies under the radar, as long as you have an internet connection it is it’s own network aside from the whole mess. It needs more support and participation, but I found a whole new internet there, and you can host your own websites in the network free. Blew me away, I like it, just needs more traffic and it will trend.