@David-TP thanks for replying. Just to confirm I'm reading correctly, in case I'm being stupid: My modem wires into the Archer A6. The Archer A6 would output wirelessly to the other RE220 models in...

I have an Archer 6 router and 3 RE220 extenders in my home. I recently turned my detached garage in to a home office but the signal out there is really poor. I purchased a 4th RE220 and plugged that...