After checking the Proxies, APNs Server and TCP Ports, it's time to pay attention to your Wi-Fi coverage and capacity.
There are two different scenarios:
If your organization is currently planning to get started with the first Apple deployment, having a solid plan for the Network coverage and capacity should be the initial step.
But if your organization already has deployed Apple devices and are facing some network issues, remember that it's critical to first check the proxies and firewall configurations, and then investigate the infrastructure itself in order to avoid unnecessary expenses.
Make sure the Wi-Fi signal reaches all areas where Wi-Fi will be used in your organization, consider all rooms and other common spaces. Distribute the access points according to the channel, since the power output of each of them will need to be reduced to prevent the signal of one access point crossing into multiple rooms.
Make sure your network infrastructure supports the number of devices at your organization, what will affect the amount of access points you will need to implement.
Tip: Check out the signal quality setting of the organization access points. If the device is being used far from the access point and a minimum quality is not setup, the device will keep the connection but the quality will not be sufficient enough to receive any MDM commands. It is recommended to setup the access point to a higher minimum quality, and when the signal is lower, the connection will automatically drop.
Keep in mind the access points should not be used to amplify the network signal, only to distribute the Wi-Fi. Therefore, one of the best practices is to plug each access point into the network via cable. In doing this, you’ll drastically reduce any interferences in your Wi-Fi.