I sure wouldn't want to give up my 20mbit FiOS line, I feel your pain!
Can you share the EXACT make/model of the DSL modem? I'm guessing it's really a modem/router and you have a base address conflict, but without the information, that's just a guess.
Connected directly to the modem, I'd like to see this as well.
Hold the
Windows key and press
R, then type
CMD to open a command prompt:
In the command prompt window that opens, type type the following command:
Note that there is a space before the /ALL, but there is NOT a space after the / in the following command. IPCONFIG /ALL
Right click in the command window and choose
Select All, then hit
Enter to copy the contents to the clipboard.
Paste the results in a message here.
If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here.