Netis DL4311 User Manual page 88

4.5.6.6 Diag-test
The Diagnostic Test allows you to test your DSL connection of the physical layer and protocol
layer for both LAN and WAN sides.
Go to Maintenance->Diagnostics-> Diag-test page, you can select a interface to run diagnostic
Click the "Run Diagnostic Test" button to start the test, and then wait several times later you
can see the diagnostic result.
ADSL2+ Modem Router User Manual
83