Every provider with a dedicated guide

Xfinity

Comcast cable gateways. Admin page at 10.0.0.1; most Wi-Fi settings also in the Xfinity app.

Spectrum

Charter cable routers. Usually 192.168.1.1; newer units are managed in the My Spectrum app.

AT&T

Fiber and DSL gateways at 192.168.1.254, unlocked with the Device Access Code on the label.

Verizon Fios

Fios Router at 192.168.1.1 or myfiosgateway.com, admin password on the label.

Cox

Panoramic Wifi gateways, usually 192.168.0.1, with most settings in the Panoramic Wifi app.

T-Mobile Home Internet

5G gateways, commonly 192.168.12.1; day-to-day settings live in the T-Mobile app.

Comparing the big three

If you are choosing between providers, or wondering why a friend's setup looks nothing like yours, our Xfinity vs Spectrum vs AT&T comparison covers how their equipment, admin access, apps and bring-your-own-device rules differ.

What changes from one provider to the next

For everyday browsing, streaming and video calls, the differences are small. They show up when you want to change something:

  • Xfinity: cable (DOCSIS) gateways. The browser admin page at 10.0.0.1 still exists, but Wi-Fi name, password and many other settings are managed in the Xfinity app. You can use your own approved modem instead.
  • Spectrum: cable service with a separate modem and Spectrum-supplied Wi-Fi router on many installs. Newer routers lean heavily on the My Spectrum app. You can use your own router.
  • AT&T: fiber and DSL gateways at 192.168.1.254. Changes need the Device Access Code from the label. IP Passthrough lets your own router handle the network.
  • Verizon Fios: fiber with an ONT and a Fios Router at 192.168.1.1. You can use your own router for internet; some Fios TV features rely on Verizon's router.
  • Cox: cable with Panoramic Wifi gateways. Most settings are handled in the Panoramic Wifi app; you can bring an approved modem.
  • T-Mobile Home Internet: 5G fixed wireless gateways. Settings are mostly in the T-Mobile app, and the service typically uses CGNAT, so incoming port forwarding is limited.

First steps after installation

Whoever your provider is, a few minutes after setup pays off:

  1. Sign in with the details on the label (see the default router passwords table) or open the provider's app.
  2. Change the admin password if the gateway lets you, so it is not the one printed on a label anyone in the house can read.
  3. Change the Wi-Fi password to a long one of your own. See how to change your Wi-Fi password.
  4. Rename the network from the default (which often reveals your provider) to something neutral. More in what is an SSID.
  5. If you set up port forwards or reserved addresses, note them down so you can recreate them after a reset or equipment swap.

Frequently asked questions

Can I use my own router instead of my ISP's gateway?

Usually, yes. Cable providers (Xfinity, Spectrum, Cox) let you either buy a compatible modem from their approved list and add your own router, or keep their gateway and put your router behind it. Fiber providers (AT&T Fiber, Verizon Fios) normally keep their own ONT or gateway in place; you connect your router to it and, on AT&T, can use the gateway's IP Passthrough setting. T-Mobile 5G gateways can feed your own router from their Ethernet port. Note that some features, such as ISP-managed Wi-Fi extenders or TV boxes, may need the ISP's equipment.

Why can't I change some settings on my ISP gateway?

Providers lock down parts of their gateways so they can manage them remotely and keep support predictable. Some move features into their apps (Xfinity, My Spectrum, Cox Panoramic Wifi, T-Mobile) and show only a limited page in the browser. If you need full control, for example custom DNS or detailed firewall rules, the usual path is adding your own router behind the gateway. See router DNS settings and port forwarding.

Do I lose internet if I factory reset my ISP gateway?

Usually only briefly. ISP gateways normally pull their line configuration from the provider when they restart, so internet comes back on its own after a few minutes. What you lose are your own changes: custom Wi-Fi name and password, port forwards, reserved addresses and the admin password, which return to the label defaults. Your devices then need to reconnect to the Wi-Fi. See how to reset a router.

Why does my ISP gateway use a different IP than 192.168.1.1?

Each provider and manufacturer chooses its own private address. Xfinity uses 10.0.0.1, AT&T uses 192.168.1.254, Cox usually 192.168.0.1, and T-Mobile 5G gateways commonly 192.168.12.1. You can always confirm by checking the default gateway on a connected device; the router IP addresses page shows how.

My provider uses CGNAT. What does that mean for me?

Some providers, especially fixed wireless and 5G home internet services, share one public IPv4 address among many customers through carrier-grade NAT. Browsing and streaming work normally, but port forwarding for incoming connections usually will not work, which affects game hosting, some security cameras and self-hosted servers. Read what CGNAT is and how to check for it.