Its been doing this for months. I assumed it was the router on the way out. However, I got round to trying another router, and the problem remains.
About three times or so a day, my router loses its DNS server and I have to restart the router to pick up the DNS server again.
Symptom is: working normally, then out of the blue the next webpage you enter fails to load and hangs at 'looking up
www......
Restarting the router gets things back to normal until the next time.
I have tried two different routers, and tried setting auto discovered DNS, manually entered DNS (Virgin.net) and also using openDNS servers. None of these things stops the problem
When it happens, it happens simultaneously to any PC connected to the router.
I still have wifi connection and ADSL connection when DNS is lost
Any ideas? I just have a sinking feeling at the prospect of calling a help line.