My internet suddenly became so slow on my laptop and desktop.
I could not complete my security updates or get into giffgaff most of the time, after logging in , all failed.
My E mail took yonks to open eventually not at all,
Contacted my provider for a test and windows diagnostic test all said ok.
Did a full scan on desktop and laptop all appeared ok. Security working'
Turned off my add blocker still same result
So I switched off my router and left it for 5 minutes.
Switched it back on and Eureka all is back to normal.