I'm finishing up a pretty large addition to a residence. The other day I connected the phone lines I had run to the existing phone service. We have abou 14 new cat 5 home runs for the phone. When I made the connections everything seemed fine, dial tone on the new and exisitng phone lines.

The next day the general contractor called me to tell me the DSL line was not working since I made the connections even though the phones were working fine. I had the general contractor disconnect the new cat 5 wires and the DSL came back to life.

What would cause this. Could there be too many linear feet of phone lines in the house causing the signal to drop? We added approx. 1500' of phone line.

Any help would be appreciated.