Powerline/wifi adapter stopped working and won't pair
Hi
I've had a WPA7510 UK kit installed for 6 days (delivered last Tues) and it's been working fine all this time. Suddenly this afternoon the powerline/wifi adapter stopped providing internet from the powerline network.
SYMPTOMS
The power LED and the 2 wifi LEDs are on and steady. Ethernet LED will light up when I plug in my laptop. The powerline LED has stopped lighting up. The unit is plugged into the wall within 1.5-2m of my laptop, so when the powerline stopped working it still identifies this as the stongest wifi signal (it's WPS linked) so there's no internet from the unit, though I'm fairly certain the wifi function works.
WHAT I'VE DONE ALREADY
I have tried a number of times to reset and re-pair the wifi/powerline adapter in a variety of different locations but no luck. I downloaded the TP-Link Utility and I tried plugging in via ethernet but the Utility it was "unable to add the device".
SOMETHING I NOTICED
When I reset (hold reset button for 15+ seconds to make all LED flash off), give it a few minutes to start up again, the pair the adapter again (pressing pair at the router's adapter and then pair at the wifi/powerline adapter), the wifi/powerline adapter's power LED will flash on and off whilst it's looking for the powerline network as usual. However once it stops flashing on and off and is steadily lit up (no change to powerline LED), if I try to hold pair down for a second or two, the power LED doesn't flash on and off. Could this mean that the unit has established itself in the powerline network, but there's an issue with the unit and it's not converting that powerline signal into internet for the wifi or ethernet?
Also, how hot is this unit supposed to get? I'm assuming quite hot as it has vent holes all the way around the top half... is that right?
I am only using the wifi/powerline adapter unit from this kit as the existing wire-only powerline network is working fine. Also, the kit I bought was an official refurbished product. If it's possible for us to resolve without me going straight to the warranty replacement option that would be a bonus.
Thanks in advance!