I’m off work for 5 days
It normally only happened with me at work going through tunnels on trains where you would loose WiFi signal strength
Not very frequently to be honest and not just GPCB so not a major problem more of an annoyance than anything else
Sometimes when answering a post after writing a novel reply when I hit submit the comment doesn’t appear now that’s infuriating but again definitely only at work and not your site
I also can’t watch videos etc when using my work WiFi so I’d say the problems are not at your end
None of it happens using my home WiFi