If you are still up with no range on the device then you can take a very simple step. First, open a browser and try to reach the Wavlink router setup page of the device. If you are unable to do so, in case of error 404 then put the IP address in the URL box. This could help in surfing through the portal. By adding the credentials of Username and password you can do it easily. Just make sure you feed the right address in the bar. After adding the address to the field you will be enabled with two ports so make sure to feed Admin in both.