2Wire 2000 Series - Manual (Page 20)

Diagnostics
16
No DSL Connection - Unable to Train
When setting up a DSL broadband network, all active phone
devices must have a phone line filter installed. Without the
filter, the DSL connection will be unstable, resulting in a
poor or no DSL connection.
If phone line filters are missing, line noise and/or echo can
affect the DSL connection. This error message occurs when
the noise level is so high that the gateway cannot establish
a DSL connection. To resolve this problem, inspect all active
phone connections (including home security systems, fax
machines, etc.) and verify that all devices have a phone line
filter installed. Once all phone lines are properly filtered, try
to connect to the broadband network.
Intermittent Connection Issue - Uncanceled Echo
When setting up a DSL broadband network, all active phone
devices must have a phone line filter installed. Without the
filter, the DSL connection will be unstable, resulting in a
poor or no DSL connection.
If phone line filters are missing, line noise and/or echo can
affect the DSL connection. This error message occurs when
the noise level is so high that it impacts the quality of your
DSL broadband connection. To resolve this problem,
inspect all active phone connections (including home
security systems, fax machines, etc.) and verify that all
devices have a phone line filter installed. Once all phone
lines are properly filtered, try to connect to the broadband
network.