Understanding your AT&T internet equipment is essential for getting the best performance from your fiber connection. AT&T provides a Wi-Fi gateway with every plan, but the specific model and capabilities vary based on your speed tier. This guide covers every piece of AT&T equipment you might encounter, from the standard gateway to the premium All-Fi mesh system, plus troubleshooting tips and guidance on what to do when you cancel service.
Key Takeaways
- Gateway included: Every AT&T Fiber plan includes a Wi-Fi 6 gateway at no extra monthly cost
- All-Fi for hyper-gig: The 2 Gig and 5 Gig plans include AT&T All-Fi equipment with advanced mesh capability
- Extended coverage available: Additional Wi-Fi access points can be added for a small monthly fee
- No BYOD option: You must use AT&T's gateway; you cannot substitute your own modem/router
- IP passthrough: You can connect your own router behind the AT&T gateway using IP passthrough mode
- Return required: All equipment must be returned within 21 days if you cancel service
AT&T Wi-Fi Gateway: Your All-in-One Device
The AT&T Wi-Fi gateway is a combined modem and router that serves as the central hub of your home internet network. Unlike cable internet setups where you might have a separate modem and router, AT&T fiber customers use a single gateway device that handles both functions.
What the Gateway Does
The gateway performs several critical functions:
- Connects to your ONT: The gateway receives the internet signal from your optical network terminal (ONT) via an Ethernet cable
- Routes traffic: It manages all incoming and outgoing internet traffic for your home network
- Broadcasts Wi-Fi: It creates your wireless network on both 2.4 GHz and 5 GHz bands
- Provides Ethernet ports: Multiple Ethernet ports allow wired connections for devices like gaming consoles, desktop computers, and streaming devices
- Handles security: Built-in firewall, WPA3 encryption, and AT&T ActiveArmor security features protect your network
Standard Gateway Specifications
The standard AT&T Wi-Fi gateway included with Fiber 300 and Fiber 1 Gig plans offers:
| Feature | Specification |
|---|---|
| Wi-Fi Standard | Wi-Fi 6 (802.11ax) |
| Frequency Bands | Dual-band (2.4 GHz + 5 GHz) |
| Ethernet Ports | 4 x Gigabit Ethernet (1 GbE) |
| USB Ports | 1 x USB 3.0 |
| Coverage Area | Approximately 1,500-2,000 sq ft |
| Max Wi-Fi Speed | Up to 1.2 Gbps (theoretical) |
| Security | WPA3, AT&T ActiveArmor |
| Monthly Cost | Included ($0/month) |
AT&T All-Fi: Premium Equipment for Hyper-Gig Plans
AT&T All-Fi is the premium equipment package included with hyper-gig plans (2 Gig and 5 Gig). It represents a significant upgrade over the standard gateway and is designed to deliver the full potential of multi-gigabit fiber speeds throughout your entire home.
What Makes All-Fi Different
All-Fi is not just a better gateway. It is a complete mesh Wi-Fi system that includes:
- Advanced Wi-Fi 6 gateway: A more powerful version of the standard gateway with better processors and more antennas for handling multi-gigabit throughput
- Mesh capability: Built-in support for mesh networking, allowing multiple access points to work together seamlessly
- Better coverage: Designed to cover homes of 3,000+ square feet with consistent high-speed Wi-Fi
- Tri-band support: Some All-Fi configurations include a dedicated backhaul band for mesh communication, preventing the mesh network from using bandwidth that your devices need
- 10 GbE port: A 10 Gigabit Ethernet port on the gateway for wired devices that can take advantage of multi-gigabit speeds
All-Fi Specifications
| Feature | Specification |
|---|---|
| Wi-Fi Standard | Wi-Fi 6 / Wi-Fi 6E (802.11ax) |
| Frequency Bands | Tri-band (2.4 GHz + 5 GHz + 6 GHz or dedicated backhaul) |
| Ethernet Ports | 4 x Gigabit + 1 x 10 GbE |
| Coverage Area | 3,000-5,000+ sq ft (with mesh extenders) |
| Max Wi-Fi Speed | Up to 2.4 Gbps (theoretical) |
| Mesh Extenders | Included as needed based on home size |
| Monthly Cost | Included with 2 Gig and 5 Gig plans ($0/month) |
Who Benefits from All-Fi?
All-Fi is included automatically with hyper-gig plans, so you do not need to request it separately. The equipment benefits:
- Homes larger than 2,000 square feet with multiple floors
- Households with 15+ connected devices
- Users who need consistent speeds in every room, including garages and outdoor living spaces
- Power users with devices capable of multi-gigabit Wi-Fi speeds (newer laptops, phones, and tablets with Wi-Fi 6E support)
Extended Wi-Fi Coverage Add-On
For customers on Fiber 300 or Fiber 1 Gig plans who need better coverage than the standard gateway provides, AT&T offers Extended Wi-Fi Coverage as an optional add-on.
What Is Extended Wi-Fi Coverage?
Extended Wi-Fi Coverage adds one or more Wi-Fi access points to your home, creating a mesh network with your existing gateway. The access points are hardwired to your gateway (via Ethernet run through your walls) for the most reliable performance, unlike wireless mesh systems that can lose speed at each hop.
How to Get Extended Wi-Fi Coverage
- Contact AT&T at 800-288-2020 or 1-855-850-5977 to add Extended Wi-Fi Coverage to your account
- An AT&T technician will visit your home to assess coverage needs and install the access points
- A small monthly fee is added to your bill (typically $5-$10/month per access point)
Extended Wi-Fi vs. All-Fi
| Feature | Extended Wi-Fi Coverage | AT&T All-Fi |
|---|---|---|
| Availability | Any fiber plan (add-on) | 2 Gig and 5 Gig only (included) |
| Monthly Cost | $5-$10/mo per access point | $0 (included) |
| Installation | Technician required | Included with initial setup |
| Technology | Wired backhaul access points | Advanced mesh with dedicated backhaul |
| Best For | Standard plan customers with large homes | Hyper-gig customers wanting maximum coverage |
Can I Use My Own Router with AT&T Fiber?
This is one of the most common questions AT&T customers ask, and the answer has nuance.
Short Answer: You Must Use AT&T's Gateway
AT&T requires the use of their provided gateway for authentication and network management purposes. You cannot replace the AT&T gateway with your own modem/router and connect directly to the ONT. The gateway handles the authentication handshake with AT&T's network, and without it, you cannot establish an internet connection.
Workaround: IP Passthrough Mode
While you cannot eliminate the AT&T gateway entirely, you can configure it in IP passthrough mode and connect your own router behind it. This effectively makes the AT&T gateway act as a transparent bridge, passing your public IP address directly to your personal router. Your router then handles all routing, firewall, DHCP, and Wi-Fi functions.
Benefits of IP passthrough:
- Use your preferred router brand (Netgear, ASUS, TP-Link, Ubiquiti, etc.)
- Access advanced router features not available on the AT&T gateway (VPN server, advanced QoS, custom DNS, VLAN support)
- Use a better Wi-Fi system while keeping AT&T's required gateway for authentication
How to Set Up IP Passthrough
- Connect to your AT&T gateway's admin interface by navigating to 192.168.1.254 in a web browser
- Log in with the credentials found on the label on the bottom of your gateway
- Navigate to Firewall > IP Passthrough
- Select "Passthrough" as the allocation mode
- Choose your connected router from the device list (or enter its MAC address)
- Save the settings and restart both the gateway and your router
Note: After enabling IP passthrough, disable the AT&T gateway's Wi-Fi to avoid interference with your own router's wireless network. You can do this in the gateway's admin interface under Home Network > Wi-Fi.
Understanding the ONT (Optical Network Terminal)
The ONT is the device that connects your home to AT&T's fiber-optic network. It is installed by the technician during your fiber installation and is typically mounted on an interior wall near where the fiber cable enters your home.
What the ONT Does
The ONT converts the light signals traveling through the fiber-optic cable into electrical signals that your gateway can understand (and vice versa). Think of it as a translator between fiber-optic language and Ethernet language.
ONT Care and Maintenance
- Do not unplug it: The ONT must remain powered on and connected at all times for your internet to work
- Keep it ventilated: Ensure air can circulate around the ONT; do not cover it or place it inside a closed cabinet
- Check indicator lights: A solid green light typically indicates a healthy fiber connection. Red or flashing lights may indicate an issue
- Do not move it: The ONT is connected to the fiber cable, which is fragile. Moving the ONT risks damaging the fiber connection
ONT During Cancellation
Unlike the gateway, the ONT is permanently installed and typically does not need to be returned if you cancel AT&T service. It remains mounted on your wall. If you re-subscribe to AT&T Fiber in the future, the existing ONT can often be reused.
Troubleshooting Common Equipment Issues
Gateway Not Connecting to Internet
- Check the Ethernet cable between the ONT and gateway; ensure it is securely plugged in at both ends
- Restart the ONT by unplugging it for 30 seconds, then plugging it back in. Wait 2 minutes for it to fully boot
- Restart the gateway by unplugging it for 30 seconds, then plugging it back in. Wait 5 minutes for it to fully boot
- Check the ONT lights; if the fiber light is off or red, there may be an issue with AT&T's network. Call 800-288-2020
Slow Wi-Fi but Fast Wired Speeds
If your wired Ethernet connection tests fast but Wi-Fi is slow:
- Connect to the 5 GHz band instead of 2.4 GHz for faster speeds (shorter range but less congestion)
- Move closer to the gateway or remove obstructions (walls, large furniture, appliances)
- Check for interference from neighboring Wi-Fi networks using the AT&T Smart Home Manager app
- Update your device's Wi-Fi driver or ensure it supports Wi-Fi 6 for maximum gateway performance
- Consider adding Extended Wi-Fi Coverage if your home is larger than 2,000 sq ft
Gateway Overheating
If your gateway feels unusually hot:
- Ensure it is placed in an open area with good airflow, not inside a cabinet or behind other electronics
- Remove any objects placed on top of the gateway
- If overheating persists, contact AT&T for a replacement unit as the device may be defective
Wi-Fi Password Issues
If you need to find or change your Wi-Fi password:
- The default Wi-Fi network name and password are printed on the label on the bottom of your gateway
- To change: open the AT&T Smart Home Manager app or navigate to 192.168.1.254 in a web browser
- Go to Home Network > Wi-Fi and update your network name (SSID) and password
Firmware Updates
AT&T pushes firmware updates to gateways automatically, typically during off-peak hours (2-5 AM). During a firmware update, your internet connection may briefly drop for 1-3 minutes. You do not need to manually update your gateway firmware.
Equipment Return Process When Canceling
If you cancel AT&T Internet, you must return all provided equipment within 21 days to avoid fees:
What to Return
- Wi-Fi gateway (or All-Fi gateway)
- Power adapter for the gateway
- Any Extended Wi-Fi Coverage access points
- Ethernet cables (if AT&T-provided)
What NOT to Return
- The ONT (optical network terminal) - this stays mounted on your wall
- Any fiber or coaxial cables installed in your walls
Return Methods
- Ship via UPS: AT&T sends you a prepaid return label. Pack equipment securely and drop off at any UPS location
- Return in-store: Bring equipment to any AT&T retail store. Get a receipt as proof of return
Failure to return equipment within 21 days results in charges of up to $150 per unreturned device.
Compatible Devices and Performance Expectations
Your devices' capabilities affect the speeds you actually experience over Wi-Fi. Here is a guide to what to expect:
| Device Wi-Fi Version | Max Theoretical Speed | Realistic Speed |
|---|---|---|
| Wi-Fi 4 (802.11n) | 600 Mbps | 50-150 Mbps |
| Wi-Fi 5 (802.11ac) | 3.5 Gbps | 200-600 Mbps |
| Wi-Fi 6 (802.11ax) | 9.6 Gbps | 500-1,200 Mbps |
| Wi-Fi 6E (802.11ax) | 9.6 Gbps | 800-2,000+ Mbps |
To get the most from your AT&T Fiber plan:
- Use Wi-Fi 6 or 6E devices whenever possible for maximum wireless speeds
- Use Ethernet connections for stationary devices that need consistent maximum speed
- Keep device firmware and Wi-Fi drivers updated for best compatibility with the gateway
Frequently Asked Questions
Does AT&T charge a monthly equipment fee for the gateway?
No. The Wi-Fi gateway is included with all AT&T Fiber plans at no additional monthly cost. You do not pay a rental or lease fee.
Can I buy the AT&T gateway instead of using the included one?
No. AT&T does not offer a purchase option for their gateway. It is provided as part of your service and must be returned if you cancel.
What is the difference between the standard gateway and All-Fi?
The standard gateway is a single Wi-Fi 6 dual-band router included with Fiber 300 and 1 Gig plans. All-Fi is a premium mesh system with tri-band capability and mesh extenders, included with 2 Gig and 5 Gig plans. All-Fi covers larger homes and supports faster Wi-Fi speeds.
How do I get AT&T Extended Wi-Fi Coverage?
Call AT&T at 800-288-2020 or 1-855-850-5977 to add Extended Wi-Fi Coverage to your plan. A technician will install additional access points in your home for a small monthly fee per access point.
Can I use my own mesh system instead of AT&T's?
Yes, but with limitations. You must keep the AT&T gateway active for authentication. You can set it to IP passthrough mode and connect your own mesh system (such as Google Nest WiFi, Eero, or Ubiquiti) behind it. Disable the AT&T gateway's Wi-Fi to avoid interference.
How do I access the gateway admin settings?
Navigate to 192.168.1.254 in any web browser while connected to your AT&T network. Log in with the credentials printed on the label on the bottom of your gateway. From there, you can manage Wi-Fi settings, IP passthrough, firewall rules, and more.
Does the AT&T gateway support WPA3 encryption?
Yes. Current AT&T Wi-Fi 6 gateways support WPA3 encryption, the latest and most secure Wi-Fi security standard. You can enable WPA3 in the gateway's admin settings.
What does AT&T ActiveArmor do?
AT&T ActiveArmor is a built-in security feature on AT&T gateways that provides network-level protection including malware blocking, suspicious site warnings, and device-level security monitoring. Basic ActiveArmor is included free; an advanced version with additional features is available for a monthly fee.
How often does AT&T replace gateways?
AT&T will replace a defective gateway at no charge. If your gateway is outdated and AT&T has released a newer model, you can sometimes request an upgrade by calling customer service, though availability varies.
Can the gateway handle a 5 Gig connection over Wi-Fi?
Not at full speed over Wi-Fi. The AT&T All-Fi gateway (included with 5 Gig plans) can deliver up to 2+ Gbps wirelessly to Wi-Fi 6E devices in ideal conditions. For the full 4.7 Gbps, you need a wired Ethernet connection using the 10 GbE port on the All-Fi gateway.
Summary
AT&T provides solid equipment with every fiber plan, and the included gateway eliminates the need to purchase your own hardware. For most households, the standard Wi-Fi 6 gateway covers the home adequately. Larger homes or those with many devices benefit from the Extended Wi-Fi Coverage add-on, while hyper-gig plan customers get the premium All-Fi mesh system included at no extra cost.
If you want to use your own router for advanced features, IP passthrough mode lets you run your preferred hardware behind the AT&T gateway. Just remember that all AT&T equipment must be returned within 21 days if you cancel.
Ready to get AT&T Fiber with included equipment? Call 1-855-850-5977 or check availability at your address using our availability checker.
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