After a decade of poor internet service we finally switched suppliers from Talktalk to Vodafone. The underlying infrastructure is still the same (and equally bad) so we get 5-8 Mbps but at least we were getting that reliably and one person having a teleconference wouldn't disable the internet for anyone else. We weren't getting the issue where after a few hours internet speed would drop to near zero and we would have to reboot the router.
This happy state of affairs lasted for 6 whole days and then a storm came through, a tree fell down and all the houses round here lost phone and internet.
The issue lies with Openreach, the monopoly supplier. Last time it took weeks for our line to be repaired.
We'd use mobile internet but there's no signal here.