192.168.100.1 Login – Router Admin & Default Password
The IP address 192.168.100.1 is a private address commonly used as a default gateway to access the admin interface of certain modems and routers, especially from brands like Arris and Ambit. It lets you change network settings, set up Wi-Fi, update firmware, or fix connection issues. If your device came from an ISP or is a compatible model, this address is your entry to advanced configuration. Before you start, make sure your computer or phone is connected to the local network, because you can only reach this address from a browser on the same network.
Same network
Connect your phone or computer to the router Wi‑Fi before opening the address.
Browser
Type the address in the URL bar, not the search box.
Credentials
Check the router label, manual, or your internet provider.
IP facts
Technical facts derived directly from the IPv4 address and our router database.
- Address
- 192.168.100.1
- Network scope
- Private IPv4 address
- Expected access
- From the local network only
- Referenced router models
- 896
Address classification source: IANA IPv4 Special-Purpose Address Registry
Router login
To log in to the admin interface at 192.168.100.1, open a web browser and type exactly http://192.168.100.1 into the address bar. Don’t add “www” or “.com”. A login page should appear. Enter the admin username and password. If you don’t know them, check the sticker on the router or the manual. Once logged in, you can change Wi-Fi settings, update the password, or configure your network. If the page doesn’t load, verify that your device is connected to the router via cable or Wi-Fi.
Username and password
Default credentials for 192.168.100.1 vary by router model and ISP. There’s no universal combination. Common usernames are “admin” with passwords like “password” or “admin”, but these may be customized by your provider. Check the label on your router or its documentation. Our database lists 896 routers that use this IP, including Arris and Ambit models. If you changed the credentials and forgot them, a factory reset may be needed.
Troubleshooting
If you can’t reach 192.168.100.1, first ensure you’re connected to the router’s network, not mobile data or a VPN. Type the address into the URL bar, not a search engine. Try http:// instead of https://, as the interface may not have an SSL certificate. Clear your browser cache or switch browsers. Restart the router and your device. Finally, confirm that 192.168.100.1 is your default gateway: on Windows, open Command Prompt, type “ipconfig”, and look for “Default Gateway”.
Common address mistake
The IP 192.168.100.1 uses numbers only, no letters. Common typos like 192.168.100.l (lowercase L), 192.168.100.1.com, or 192.168.100.I (uppercase i) will block access. Also, don’t confuse it with similar addresses like 192.168.1.1 or 192.168.0.1, which are other common gateways. Always type the exact address into your browser’s address bar, with no extra characters, to reach your router’s login page.
Security after login
After logging into the admin panel at 192.168.100.1, change the default admin password right away to prevent unauthorized access. Use a strong password with letters, numbers, and symbols. Enable WPA3 or WPA2 encryption for your Wi-Fi and turn off WPS if you don’t need it. Check regularly for firmware updates and install them to patch security vulnerabilities.
FAQ
Why can't I access 192.168.100.1?
Make sure your device is connected to the router’s network, you entered the address correctly, and you’re using http://. Temporarily disable any VPN and try a different browser.
What are the default login credentials for 192.168.100.1?
There are no universal credentials. Check the sticker on your router or its manual. Common combos are admin/admin, admin/password, or blank username with admin as password.
How do I reset my router if I forgot the password?
Find the reset button on the back of the router. Press and hold it with a paperclip for 10–30 seconds until the lights blink. Settings will return to factory defaults.
Is 192.168.100.1 the same as 192.168.1.1?
No, they are different IP addresses. 192.168.100.1 is often used by cable modems, while 192.168.1.1 is more common on home routers. Use the address shown on your device.
How to Use the IP Address
Open a web browser (like Chrome or Firefox).
In the address bar, type the IP address you want to access (e.g. 192.168.1.1) and press Enter.
You’ll be taken to the router’s settings interface. Enter the username and password (often admin / admin or printed on the device).