RE220 and RE200 will not extend at 10 m distance
I have an Archer AX12 Router serving the whole house, however it's wifi signal does not reliably extend to the front garage or the front door.
To get over this I have placed a RE220 extender near the front door which worked OK until recently. The extender is running in Mesh mode so it has the same network address as the Archer making it hard to distinguish where the wifi signals are coming from.
The error message the RE220 is intermittently showing is: too far from the router, its about 25 feet or 8 metres from the router but does have a concrete wall in the way.
Unfortunately the printer appears to be connecting to this repeater as it behaves erratically, as do the front door cameras, which is a big problem as they are not being seen by the network.
I am fairly limited to locations to place the RE220, due to lack of power sockets. I have tried an RE200 in its place with the same issues, I have also set up the second extender between the router and the first extender, but the first extended still says too far.
The irony is that there is an old extender 4metres away and through three concrete walls which can see the router's signal and just about works, but I would prefer if it used the stronger signal from the mesh.
My questions:
1. Why has this now become a problem? has there been an upgrade recently?
2. How do I get the two REs to work with each other
3. How do I get the REs to pick up a weak signal as well as other wifi devices?
Thank you
Philip
(Please do not give me a link on how to set up a range extender - I set up my first company network in 1992, so I do understand how they work.)