This problem is driving me mad. If I am using the internet and my landline rings and I answer it the internet connection drops. It is happening quite a lot recently. Any ides to resolve this would be helpful.
if you use filters then replace them one at a time till you find faulty one
remember you need a filter on every phone socket where you have device connected which uses phone line
It could also be a high resistance fault on your line. Is there any noise with a quiet line test on 17070?