AT&T Router Login

AT&T gateways use 192.168.1.254 as the admin address — not 192.168.1.1 like most other ISPs and router brands. This unusual last octet (254 instead of 1) trips up almost everyone who tries the "standard" 192.168.1.1 address first. The IP was chosen to avoid conflicts with other consumer routers that commonly sit at .1.1.

The admin password on AT&T gateways has a specific name: the Device Access Code. It's a 10-character alphanumeric string unique to your device, printed on a sticker on the back or side of the gateway. There's no username — AT&T's admin interface only asks for the Device Access Code. You can also reach the admin panel via the hostname att.wirelessgateway on some models.

Finding the Device Access Code

The Device Access Code is the gateway's admin password. It's always on the physical device — AT&T does not have a universal fallback password. Look for:

• A sticker on the back or side of the gateway
• The field labeled "Device Access Code" or "System Password"
• It's typically 10 characters — letters and numbers (e.g., "W4RT8K2ZXQ")
• It's distinct from the WiFi password on the same sticker

If the sticker is worn off or missing, and you don't know the Device Access Code, you'll need a factory reset — there's no AT&T backdoor or recovery option.

AT&T Gateway Models

Model	Service	WiFi	Admin IP
BGW320	AT&T Fiber (current)	WiFi 6 (AX)	192.168.1.254
BGW210-700	AT&T Fiber / U-verse	WiFi 5 (AC)	192.168.1.254
NVG599	AT&T U-verse (legacy)	WiFi 5 (AC)	192.168.1.254
NVG589	AT&T U-verse (legacy)	WiFi 4 (N)	192.168.1.254
Arris BGW210 (variants)	Fiber, marketed as AT&T	WiFi 5	192.168.1.254

How to Log In

1. Connect to your AT&T WiFi or use an ethernet cable into the gateway
2. Open a browser and go to http://192.168.1.254
3. The login screen asks only for a password — enter the Device Access Code from the gateway label
4. Click Sign In
5. The AT&T gateway dashboard shows your internet connection, connected devices, and WiFi settings

Smart Home Manager App

AT&T's Smart Home Manager app provides most everyday settings through your AT&T account — not the Device Access Code. This means it also works remotely. Features include WiFi password changes, device pausing, parental controls, speed tests, and WiFi extender setup (for AT&T WiFi Extenders and Air units).

• Download Smart Home Manager from the App Store or Google Play
• Sign in with your AT&T account (myAT&T credentials)
• Tap Network to access WiFi settings, device management, and diagnostics

Change WiFi Password

1. Log in at 192.168.1.254
2. Go to Home Network → Wi-Fi
3. Select your network band (2.4 GHz or 5 GHz)
4. Update the Wi-Fi Password field
5. Click Save — all connected devices will need the new password

IP Passthrough (Bridge Mode)

If you want to use your own router with AT&T Fiber while retaining the gateway for its ONT functionality, AT&T calls their bridge mode "IP Passthrough." This passes the public IP directly to your router.

1. Log in at 192.168.1.254
2. Go to Firewall → IP Passthrough
3. Set Allocation Mode to Passthrough
4. Select your router by MAC address from the device list
5. Save — the gateway reboots and passes the public IP to your router

Troubleshooting

Problem	Fix
192.168.1.254 not loading	AT&T gateways use .254 not .1 — confirm you're on AT&T WiFi, not mobile data
Device Access Code not accepted	Double-check the sticker — the DAC is different from the WiFi password on the same label
Sticker worn off / DAC unknown	Factory reset required — hold reset button 10 seconds
IP Passthrough breaking WiFi	After enabling passthrough, disable the gateway's WiFi radios to avoid conflict with your own router's WiFi
att.wirelessgateway not resolving	Older models only — use 192.168.1.254 directly

Factory Reset

1. Locate the red reset button on the back of the gateway (recessed)
2. With the gateway on, press and hold for 10 seconds
3. The broadband light blinks — release
4. The gateway reboots to factory defaults — takes 2–3 minutes
5. After reset, the Device Access Code reverts to the code printed on the label