From what I'm reading a lot in this community and across the Internet, I've just joined the Mac Mini wifi h*!! group, hmmmm.
I have a 2017 MacBook Pro that works great, was planning on adding a newer M1 Mac Mini with dual monitors as my trading platform (pain to use 2 monitors w the macbook and nice to keep travel LT and trading separate).
House wifi setup is a new TP-Link AX21 (1800) Wifi 6 router with a TP-Link RE603X mesh repeater, both have been working flawlessly. I've tried the scenario below with the mesh repeater both on and turned off, no difference.
So a friend loaned me a 2020 M1 mini reset to factory specs, then I did a complete new Monterey install, installed all new software and finally was up and running, sorta. Both MacBook and Mini are Monterey 12.4.
Macbook works fine, getting 150/120 Mbps download/upload consistently, doesn't change much with or without the repeater.
Mini on the other hand is almost useless, getting .05 Mbps/12Mbps download/upload consistently today (Yes .05 Mbps!), somedays it's a lot better, up to 2 Mbps download.
Both are sitting on the same desk 3 feet apart. Macbook shows an RSSI of about -40 dBm, Mini has an RSSI between -59 and -63 dBm, both are on the same 5 Ghz channel.
So any feedback from Apple on a solution for this? Seems to have been going on for several years.
Anyone have any luck adding an external USB wifi adapter, I'm looking at the AC600 or AC1300 perhaps if their drivers will work on M1 Monterey 12.4.
Thanks