DSL connection cuts out every 10 minutes?

I have dsl high speed internet and I called them because it kept cutting out and they said it was our router because it was 5 years old so I got a new netgear r6100 dual band router (120 $) , our modem is about 2 months old the phone line coming into the house is new (new house) but the line going to the box on the road is old could that be the problem? when we first got the internet it was awesome then they upgraded the speed coming through the line and it slowly got more and more less stable now its cuts out all the time?
 
Back