Hi, thanks for your help.
I don't have any extensions installed.
I tried disabling VPN.
Tried ipconfig /flushdns.
Tried deleting cache.
Restarted computer.
I also tried incognito mode.
I don't understand how it completely stops working when my system has not changed.
I look at some of the error messages;
Do you have sync on? I tried and it made no difference.