I had all kinds of problems when I first got DSL and then more when i got VW. They ran a new line from my house to the junction box. and then another line from that junction box. They had to replace something in that box because of corrosion. The lines were all over 40 years old. That seemed to fix the multiple problems I was having. As I said before I had my own special tech that was working with me for days. Even had his phone number so I could call him.