A specific AT&T firmware bug (seen in M1 firmware 12.06.16.00 and later) causes a login loop when the device has a weak cellular signal (-111 dBm or worse).
This is where most users fail. There are passwords for these devices: hotspot.webui login att
Launch any web browser (Chrome, Safari, Edge) on your connected device. A specific AT&T firmware bug (seen in M1 firmware 12
Leaving the default password makes you vulnerable to a "drive-by" hack where someone on your Wi-Fi changes your settings. Go to and set a strong, unique password. Leaving the default password makes you vulnerable to
You will need a username and password. AT&T hotspots ship with standard defaults. Try these combinations in order:
hotspot.webui is a local domain name (similar to routerlogin.net or tplinkwifi.net ) that resolves to your AT&T hotspot device’s IP address—typically 192.168.1.1 or 192.168.0.1 .
Open your device's Wi-Fi settings and select your AT&T hotspot network name (SSID).