In the event that you are unable to connect a wireless printer or wireless security camera to the AmpliFi router's Wi-Fi please perform these steps:
Some devices can only connect to a 2.4GHz frequency network. To solve issues related to this you can try two things:
1. You can disable Band Steering in the app to allow connection on 2.4GHz, as described in this article: Band Steering.
2. Create a separate SSID (WiFi network) that will only broadcast 2.4GHz on the router or mesh point (depending on the location of your device) and then have the device connect to that specific SSID: How to Add an Additional SSID.
An easy way to connect to your device is by enabling WPS (Wi-Fi Protected Setup). If your device supports WPS, then you can enable it on AmpliFi by following the steps in this article.
1. If neither of these work, you can clear the network history of the device. This has been noted as most helpful printers, but can help with any type of device that allows this sort of cleanup. This option can be found in most printer's main settings.
2. Restore printer (or device) to factory settings by resetting. These actions should erase the networking history of the device, allowing it to gain access to the AmpliFi wireless network (test with a 2.4GHz only SSID).