Just checked the Sky router's interface and there was a IP listed there that I haven't configured (DHCP is turned off) with the MAC address I posted above. I have now pulled the link to the extender!

Hi,

I personally do NOT use WPS unless my SSID is not being broadcast. That's due to the fact that all the routers details (SSID, WPA key, etc) are broadcast to all devices when the WPS button is pressed. I think that is a major security hole in all routers & I personally disable WPS on my router.

HTH,

Can't say I am particularly thrilled with having WPS enabled on the Sky router. Thing is I have a Sky Q TV box, and with WPS disabled on the Sky router, the Q box loses connection. WPS is disabled on the second router, and I have disabled the PIN on the extender (this was the only setting on the extender relating to WPS). Would disabling the PIN also disable WPS on the extender though? As always your input is greatly appreciated Personally I think I need a remote on and off switch for my neighbour

There was a rogue IPv4 IP address showing up on the Sky router's user interface (but not on the other router, or extender), which I blocked earlier. Just checked the Sky router's connected devices interface and now there is a IPv6 address showing up on the access point! Until now there has been NO IPv6 IP addresses connected to that access point/old router/extender??!!

Okay so an update for anyone following this... the MAC address in question belongs to my access point which I set up as a client. This client access point, is connected by ethernet cable to a old second router (not connected to the phone line), which in turn is connected by 2.4G wifi to the neighbour's extender approx 50 metres away. The problem with this set up is that any connected device/traffic coming from the old second router and extender shows up on the Sky's connected devices list with the client AP's MAC address. To simplify things, I have disabled IPv6 LAN side on the Sky router, included the fixed IPs of the extender and second router in a range of IPs that is now blocked from having internet access (should anyone emulate them). Also as I mentioned earlier devices connected to the extender and in particular the old second router don't always show up in their respective connected devices interface pages. Does anyone know if there's anything I can change in this set-up to improve things and allow the devices MAC addresses connected to the second router/extender to actually show up on the main Sky router's connected devices interface? I forgot to mention that the distance between the main router and second router is approximately 15 metres and a direct ethernet connection from one router to the other isn't feasable...

Only if you have a transparent layer2 (i.e. ethernet rather than IP) network - your old second router acting as an AP would have to be operating as a bridge rather than a router, and the client access point would have to capable of supporting WDS to pass the MAC addresses on.

The latter is problematic as mixing equipment from different vendors often stops WDS working, even when both devices support it, as there is no one standard way of encapsulating the multiple MAC addresses. Although I don't particularly like powerline extenders they may be a better option to get ethernet from the Sky router to the old second router which is configured as a bridge.

A diagram of your setup might help explain things.

Thank you for this very useful information I will certainly look into it, and give a update should I go ahead with this suggestion. Thanks again