@Tot1212 The reason that a particular port is reported closed, means either the port is not opened in router's port-forwarding menu or there is no active service on that port on the device that this...

@ppap TL-WA901N is an Access Point device. It doesn't support NAT function, so it doesn't have a port-forwarding feature implemented. Router devices have the NAT function implemented along with the...

@LordBeerus In general Virtual Server = Port Forwarding - in different models this feature can be seen with one of these two names.

@TwoEyedJack This option binds the WAN IP address on the status page in router's web management interface to the DDNS record. If the AX20 WAN IP address is a private IP address (whether dynamic or...

@SwaroopMG Archer C20 uses 9V power supply. There's a risk of frying sensitive electronics if the power supply doesn't match the device operating voltage.

@Faisal12332 You're with the (EU) region FW release - get the latest version from here. FW region and HW version should match so the upgrade procedure could be successful.