Ask them for a HOME RUN from the box to your DSL modem. That way all the filters and more are history. Again I've lost count of how many times I either find a missing filter or the DSL customer that asks what a filter is. The HOME RUN is the fix I like.
Please ask them for the HOME RUN.
I had been having quite a bit of trouble with my DSL and having it go down almost every night around dusk. After some trouble-shooting, I determined the problem was due to the internal wiring. I live in a house built in 1912. The fact that there are wiring issues is not a surprise. I have a short-term solution in place but it's not ideal and I'm still prone to the DSL disappearing at random intervals. I've been investigating options and it seems like a DSL splitter (also called a POTS splitter) which would be located next to the NID would be the best solution. I'm far from expert when it comes to electrical & phone wiring. Does anyone have experience with installing one of these splitters and how much expertise is necessary to make it work?