I have a phone jack with a dsl filter on it.

Question

The phone jack worked until the installer left. When it is disconnected all the other jacks work as they should. When I connect it back up I have a dial tone for a few minutes and it goes dead and the other jacks don't work.
I have bought two new phones. So the phone is not the problem. I have tried a different dsl filter, still the same problem. Can you help? Nancy