Lost Broadband. Tested on Laptop and it was also failing on this. It worked fine from 08:00 until 10:00. I switched of ADSL Router-Modem counted 10 and switched back on again but no change.
I had replaced our telephone in sitting room and plugged spare into bedroom just before 10.00. Removed bedroom phone and Broadband is back!Now my phone cable is -> Sitting room -> Bedroom -> Office and I had phones connected in Sitting Room and Office so I guess I exceed the mystical REN limit?