Hi Just a question not sure the heading is correct but:

I have a double Lan socket and 1 is spare ie: not connected to anything, can i backfeed it ? Like connect Lan cable to the back of the socket with a wire going outside through the wall and just put a RJ45 Connector on the end to plug into my external Access Point ? Something like the pictures i show ?

I would then plug a cable in from my Router to this socket which would then go straight to the RJ45 that i want to plug into external AP ?

Will this work ?

You can only have one device connected to an ethernet port concurrently.

So yes, you can wire them in parallel (though you might lose some throughput due to long exposed wires/noise), but you won't be able to use them both at the same time.

Get a cheap 5 port hub and you can have 4 different connections. Few hundred bahts and problem solved

Get a cheap 5 port hub and you can have 4 different connections. Few hundred bahts and problem solved

Nothing to do with a hub

Was exploring a way to get a feed to an external access point from an existing wall socket without drilling a new hole

You can only have one device connected to an ethernet port concurrently.

So yes, you can wire them in parallel (though you might lose some throughput due to long exposed wires/noise), but you won't be able to use them both at the same time.

Thanks