This article goes over how to access Unite Manager.
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INSTRUCTIONS & INFO
To access AT&T Wi-Fi manager, connect your device to the mobile hotspot Wi-Fi network.
In the browser of the device connected to the mobile hotspot, enter one of the two options in the web address field: http://attwifimanager/ or 192.168.1.1 Note: Link will only work if you are on a device connected to the mobile hotspot.
Tap Go or hit the Return key.
Enter the Admin Login Password, then tap Sign In. Note: The default Admin Login Password is "attadmin". If you have changed and forgotten your Admin Login Password, you can perform a factory reset to change the Admin Login Password back to "attadmin". To perform a factory reset, on the mobile hotspot, tap Settings > About >Factory Reset > Factory Reset >OK.