I've been having some issues with my DSL line and when AT&T did a line test they found a lot of noise.
The technician came out and tested the line up to the house and said it was clean. This means that the wire in my house is probably bad or has some interference.
I did all the wiring in my house since we built the house, but I'm not sure how to test the cable for noise.
Is there a tool to test this with? Or how do I determine if there is interference? Should I just run a new cable?