> ... It had been setup 5 years ago and the company that did the setup didn't hand over any admin passwords. ...
> Any system so heavily reliant on a single point of failure with such difficulty to replace is a no go for me.
Not to shill for Ubiquiti here, but none of that sounds like a problem with UniFi or the idea of centrally-managed APs.
UniFi APs don't stop working if the UniFi server fails. You can't make configuration changes, but you can SSH into the AP, reset it, and associate it with another UniFi server.
> Any system so heavily reliant on a single point of failure with such difficulty to replace is a no go for me.
Not to shill for Ubiquiti here, but none of that sounds like a problem with UniFi or the idea of centrally-managed APs.
UniFi APs don't stop working if the UniFi server fails. You can't make configuration changes, but you can SSH into the AP, reset it, and associate it with another UniFi server.