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Apple automatically enables a setting to rotate your device's Wi-Fi (MAC) address when it joins a network without password protection, like the snc network.
Our device registration works by registering a Wi-Fi address, and tying it to a user.
Because of this, you would enter an endless loop of registration if the rotating Wi-Fi address setting is left on.
Disabling Rotating Wi-Fi Address on iPhone/iPad
Open Settings on your iPhone or iPad, then tap "Wi-Fi".

Tap the blue "i" button or "Details..." next to snc to open that network's settings.

Next to Private Wi-Fi Address, tap on "Rotating".

Select either "Off" or "Fixed", then tap the back button.

Tap "Join This Network".


Disabling Rotating MAC Address on a Mac
These steps are very similar to iOS and iPadOS.
There are slight differences noted here.
Like on iPhone, open System Settings and navigate to "Wi-Fi"
Next to the snc network, select "Details..." or the three dot menu.

Once viewing the network settings, find the "Private Wi-Fi Address" setting, and select "Off" or "Fixed".
Once done, click "OK" at the bottom.