Your router is capable of testing your DSL connection. The individual tests are listed below. If a test displays a fail status, click "Return Diagnostics
Tests" at the bottom of this page to make sure fail status is consistent. If the test continues to fail, click "Help" and follow the troubleshooting
procedures.
To access the Diagnostics setting window, click on the Diagnostics button under the MAINTENANCE tab.
Virtual Circuit:
Select a WAN interface and click Rerun Diagnostics Tests.
TEST THE CONNECTION TO YOUR LOCAL NETWORK:
There are Test your LAN 0/ LAN 1/ LAN 2/ LAN 3 Connection,
Test your Wireless Connection and Test ADSL Synchronization
and they will show PASS or FAIL
TEST THE CONNECTION TO YOUR INTERNET SERVICE
PROVIDER
There are Ping ISP Default Gateway/ Primary DNS server and