What is the problem?
I recently upgrade our routers from the Apple Airport Extreme to the Google Wifi Mesh Routers. The changed the name of the network to a different name and the RaspberryPi's wouldn't work.
What did you already try to solve it?
I amended the SSID and password in the config file and confirmed the correct country as well.
I still cannot see the RaspberryPi in my device list to be able to config. What could be the problem?
Logs (syslog, dmesg, ...)
Additional information about your network (Hardware you are trying to connect to, hardware you are trying to connect from, router, access point, used operating systems, ...)