Diagnostic; Help - TP-Link TD-W8901G User Manual

4.6.5 Diagnostic

Choose "Maintenance→Diagnostic", you can view the test results for the connectivity of the
physical layer and protocol layer for both LAN and WAN sides in the screen (shown in Figure 4-51).

4.7 Help

Choose "Help", you can view the help information for configuration of any function.
TD-W8901G 54M Wireless ADSL2+ Modem Router User Guide
Figure 4-50
Figure 4-51
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