DSL: Connectivity Issues
 

I'm having a very strange problem keeping a consistent internet Connection. Here is a picture of my network:

http://robot.gotdns.org/~asdf/ubuntu_server/network.jpg

Another service that is running on 192.168.0.10 is DHCP.

My problem is that my internet connection is dropped all the time for no apparent reason.

If I keep the DHCP server on my DSL router, however, my internet connection is pretty stable.

Does anyone know what kind of messaging needs to happen between Earthlink and I in order to keep my connection up and running?

What can I do to start diagnostics? I don't even know where to start with this problem...

Some intermittent DSL problems I had in the recent past were related to having a phone connected to the line that wasn't on a filter. Actually, it was connected to a filter I had from a previous provider. I used the filter that came with the modem and cables and that seemed to resolve the issue.

Another problem I experienced was the phone line being connected to an alarm system. No filter there.

Anything like that on your system?