D-Link DSL-2790U - Diagnostics

95D-Link DSL-2790U Wireless N300 ADSL2+ Modem Router User Manual
Section 4 - Conguration
Diagnostics
This page is used to test the connection to your local network, the connection to your DSL service provider, and the connection
to your Internet service provider. Select your WAN Connection. Next, click Rerun Diagnostics Tests to run the diagnostics tests.