192.168.100.1 – Router Admin Login Page

What Is 192.168.100.1?

192.168.100.1 is a private IP address — specifically, the default gateway address used by certain routers and modem-router combos to host their admin panel. When you type it into a browser, you’re not going to a website. You’re talking directly to the device sitting in your home.

This address falls inside the private IP ranges defined by RFC 1918 private address ranges — a set of address blocks reserved exclusively for local networks. That means 192.168.100.1 is invisible to the public internet. It only works if your device is connected to the same network as the router.

Think of it like an internal office extension number. It works on the building’s phone system, but you can’t dial it from outside.

What makes 192.168.100.1 a little different from more common addresses like 192.168.1.1 or 192.168.0.1 is the “100” in the third segment. This is typical of ISP-provisioned equipment — particularly cable modems, DSL gateways, and fiber ONUs used by providers like Xfinity (Comcast), Cox, and certain Spectrum deployments. Brands like Motorola, Arris, ZyXel, Huawei, and TP-Link frequently use this IP on their gateway hardware. You’ll also see it on some Netgear and DIGI devices.

Here’s something most people don’t realize: your router sits between your devices and your ISP. When you access 192.168.100.1, you’re not touching the internet at all — you’re configuring the device that manages your local traffic. That’s why this address is only reachable from inside your network.

Default Credentials for 192.168.100.1

Before you log in, you’ll need a username and password. Here are the default credentials for major brands that use 192.168.100.1. That said, always check the label on the back or bottom of your router first — manufacturers sometimes print device-specific credentials there, which override the general defaults.

Brand	Default Username	Default Password
TP-Link	admin	admin
Netgear	admin	password
Huawei	admin	admin
Arris	admin	password (or blank)
Motorola	admin	motorola or blank
ZyXel	admin	1234 or admin
Tenda	admin	admin
D-Link	admin	(blank)
Linksys	admin	admin
Cisco	cisco	cisco
Belkin	admin	(blank)

Pro tip: If none of these work, your ISP might have set a custom password. Check any documentation or paperwork left by the technician when your service was installed.

How to Log In on a PC or Mac

This process works in Chrome, Firefox, Safari, Edge — any modern browser.

1. Make sure your computer is connected to the router, either via Wi-Fi or an Ethernet cable.
2. Open your browser and click the address bar at the top — the long bar where URLs go.

3. Type 192.168.100.1 exactly as written and press Enter.
4. You should see your router’s login page load. Enter your username and password.
5. Click Login or OK to access the admin dashboard.

If the page doesn’t load, skip to the troubleshooting section below.

How to Log In on a Mobile Phone

Most guides skip this entirely or give you one vague set of steps. Here’s how it actually works on both iPhone and Android.

iPhone (iOS)

1. Open Settings → tap Wi-Fi → make sure you’re connected to your home network.
2. Open Safari (not Chrome — Safari handles local IPs more reliably on iOS).
3. In the address bar at the top, type 192.168.100.1 and tap Go.
4. The router login page should appear. Enter your credentials.
5. If Safari redirects you or gives an error, try typing http://192.168.100.1 with the full http:// prefix.

Android

1. Pull down from the top and make sure Wi-Fi is enabled and connected to your home network.
2. Open Chrome or any browser.
3. Tap the address bar and type 192.168.100.1, then tap Enter or Go.
4. Log in with your username and password.

Troubleshooting: 5 Problems and How to Fix Them

How to Factory Reset a Router Using 192.168.100.1

Before you reset: Back up your settings if your router supports it. Most Netgear, Arris, and TP-Link admin panels have a Backup/Restore option under Administration or Advanced. Use it. A factory reset wipes everything — Wi-Fi name, password, port forwarding rules, all of it.

To reset:

1. Locate the small Reset button on the back or bottom of the router. It’s usually recessed so you don’t hit it accidentally — use a paperclip or pin.
2. With the router powered on, press and hold the Reset button.
   • TP-Link: Hold for 10 seconds
   • Netgear: Hold for 7–10 seconds
   • Arris/Motorola: Hold for 15–30 seconds
   • Huawei: Hold for 10–15 seconds until indicator lights change
3. Release the button. The router will reboot — give it 2–3 minutes to fully restart.
4. Navigate back to 192.168.100.1 and log in with factory default credentials (from the table above or the sticker on the device).

What to Do After You Log In

Logging in is just the beginning. Here’s what actually matters once you’re inside.

1. Change the Admin Password

This is the single most important thing you can do. If someone else gets on your network, the first thing they’ll try is your admin panel with default credentials.

1. Find Administration, System, or Management in the menu (varies by brand).
2. Look for Admin Password, Account Settings, or Change Password.
3. Enter a new password — use something unique, at least 12 characters. Following NIST password guidelines means favoring length over complexity; a passphrase like BlueCoffeeTable22! is more secure than X#4p! and far easier to remember.
4. Save and log back in with the new password.

2. Change Your Wi-Fi Password

Go to Wireless or Wi-Fi Settings → find your network SSID → look for Password, Passphrase, or WPA Pre-Shared Key. Update it and save. If you have both 2.4GHz and 5GHz bands, update each one.

3. Set WPA2 or WPA3 Security Mode

Older routers default to WEP or WPA, which are crackable. Find your Wireless Security settings and select WPA2-PSK (AES) at minimum. If your router and devices support it, WPA3 security standard is significantly stronger and worth enabling. For most home networks in 2026, WPA2 is still solid — WPA3 is the upgrade, not a requirement.

4. Check Connected Devices

Under DHCP Client List, Connected Devices, or LAN settings, you’ll see every device on your network. If something looks unfamiliar, you can learn what a MAC address is to help identify unknown entries — every device has a unique hardware identifier. Suspicious device? Change your Wi-Fi password and that device won’t reconnect.

5. Set Up a Guest Network

If you have guests visit regularly, a guest network is worth the 5-minute setup. It puts visitors on a separate, isolated network — they get internet access, but can’t reach your printer, smart home devices, or NAS. Our guest network is literally called “GuestWiFi” — simple works. Find Guest Network or Guest SSID in your Wireless settings.

6. Update Your Router Firmware

Firmware updates patch security vulnerabilities. Under Administration or Advanced, look for Firmware Update or Software Update. Many newer routers check automatically — but if yours doesn’t, doing it manually once or twice a year is good practice. Always have a stable connection before updating, and don’t unplug the router mid-update.

Which Brands and ISPs Use 192.168.100.1?

Brands that commonly use this IP as default:

• Motorola (especially MG7550, MB8611, and similar cable modem-routers)
• Arris (SURFboard series and ISP-issued gateway devices)
• Huawei (fiber gateway devices, common outside the US but used by some carriers)
• ZyXel (DSL and fiber gateway models)
• TP-Link (select modem-router combo models, not standalone routers)
• Netgear (some older and ISP-specific models)
• DIGI (carrier-specific hardware)

ISPs that may deploy hardware using 192.168.100.1:

• Xfinity (Comcast) — some Xfinity gateway models use 192.168.100.1, although the standard Xfinity admin IP is 10.0.0.1
• Cox — some Cox-issued Panoramic WiFi gateways
• Spectrum — rare; Spectrum usually uses 192.168.0.1
• AT&T — rare; AT&T standard is 192.168.1.254
• Verizon Fios — rare; Fios default is typically 192.168.1.1

The short version: if your ISP gave you a combo modem-router (one device that handles both your cable/fiber connection and your Wi-Fi), there’s a decent chance 192.168.100.1 is the login IP. If you have a separate modem and router, the router’s IP is more likely to be 192.168.1.1 or 192.168.0.1.

Frequently Asked Questions