The pre-charged kits are fairly inexpensive and surprisingly easy to put in, but you’ll need about $400 in extra shit.
My extra shit list:
Disconnect box
Surge suppressor
Liquid-tight whip
Lineset chase
20A breaker
Various holesaws
12/3 wire
Caulking
Duct seal
Extra insulation
Wall mount or concrete paving block
Are they using the same name (SSID) ? Some 2.4 only devices won’t connect to a network with the same SSID on different bands. I have a separate IoT SSID available on 2.4 only for such devices (it’s also on its own VLAN)
I wish that were the case, but I also have a VLAN’d virtual interface with a different SSID on the 2.4 radio and it’s not discovering that or the other SSIDs around the neighborhood that I’d normally see. But it’s an interesting point, I hadn’t encountered that one before.