@Solla-topee thanks for your response, but sadly having spent over 3 hours dealing with the TP-Link technical team trying to solve my local network issues, I can say with ABSOLUTE confidence that...

I have just been on a 3 hour web chat with TPLink support, running various diagnostics and trying to get my recently purchased TL-WPA7510 Kit (Gigabit AV1000 product) to work on my home network...