Specifications

TD-W8151N 150Mbps Wireless N ADSL2+ Modem Router User Guide
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If the result is similar to Figure 4-68, the connectivity of the Internet is fine.
Figure 4-68
If the result is similar to Figure 4-69, there is something wrong with the connectivity of the Internet.
Figure 4-69
4.7 Help
Choose “Help”, you can view the help information for configuration of any function.