UPnP: Select this checkbox to activate UPnP. Be aware that anyone could use an UPnP application to open the Web configurator's login screen without entering the device's IP address

Auto-configured:Select this check box to allow UPnP-enabled applications to automatically configure the device so that they can communicate through the device, for example by using NAT traversal, UPnP applications automatically reserve a NAT forwarding port in order to communicate with another UPnP enabled device. This eliminates need to manually configure port forwarding for the UPnP enabled application.

3.14.1 System Diagnostics

Go to Maintenance -> Diagnostics to see the Diagnostic Test. This page shows the test results for the connectivity of the physical layer and protocol layer for both LAN and WAN sides.

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