192.168.100.1: Cable Modem Admin Page and Status
Open 192.168.100.1 to see your cable modem status, signal levels and connection logs, and what to do when it does not load.
Open this address: 192.168.100.1These open only from a device connected to your own router. They cannot be reached from the internet.
192.168.100.1 is the address of many cable modems themselves, not of the router. It is useful when the internet is down, because it shows whether the modem has a connection.
Not working? Try another address: 192.168.1.1192.168.0.1192.168.1.25410.0.0.1192.168.8.1192.168.31.1
Quick facts about 192.168.100.1 (cable modem)
- Address to type
- http://192.168.100.1
- Used by
- Many cable modems (Arris, Motorola, Zoom and others)
- Shows
- Modem status, signal levels, event logs
- Where it opens
- A device connected to the modem or its router
Routers that use 192.168.100.1
- Cable modems from Arris, Motorola, Zoom and others
- It is the modem’s page, separate from your router page
How to log in at 192.168.100.1
- Connect your phone or computer to the router by Wi-Fi or a LAN cable. The page opens only from inside your own network.
- Open a browser and type http://192.168.100.1 in the address bar, not in the search box.
- Enter the router’s admin username and password. They are usually on a sticker on the router, or you chose them during first setup.
- Open the Wi-Fi, security or system menu to change what you need. Save, then wait while the router applies the change.
- Log out when you are done. If you still use the default admin password, change it now.
What to expect
| Item | Detail |
|---|---|
| Login | Often none for the status page; sometimes admin and a label password |
| Main use | Check if the modem is online and the signal is healthy |
| Router page | Usually a different address, such as 192.168.0.1 or 192.168.1.1 |
Some modems show only a read-only status page.
If 192.168.100.1 will not open
- Virgin Media Hub in modem mode
- Virgin Media Hubs in modem mode move their settings page here. See the Virgin Media page.
- It does not load behind my router
- Connect a computer directly to the modem with a cable and try again. Some routers do not forward this address.
- The page does not open
- Check that you are on this router’s network, not mobile data or another Wi-Fi. Then confirm the address with the router IP finder, because your router may not use 192.168.100.1.
- A search page opens instead of the router
- Type http:// before the address, and type it in the address bar, not the search box.
- The browser warns “not secure”
- Many routers use plain http or a self-signed certificate, so the warning is normal on your own router. Do not click through it on public Wi-Fi.
- Wrong username or password
- The admin password is not your Wi-Fi password. Check the router label. If you changed it and forgot it, see the reset guide.
- The page loads forever
- A VPN, a proxy or a second router in between can block it. Turn off the VPN and try a LAN cable. If you put your own router behind the ISP one, the ISP router has a different address from your own.
How to keep your router secure
- Change the default admin password and use a long one that you do not use anywhere else.
- Keep the router firmware up to date.
- Turn off remote management unless you really need it.
- Use WPA2 or WPA3 for Wi-Fi.
Questions people ask about 192.168.100.1 (cable modem)
- Is 192.168.100.1 my router?
- No, it is usually the modem. Your router has its own address.
- Why use it?
- To see signal levels and logs when you talk to your ISP about outages or slow speeds.
Free tools that help
- Subnet calculatorEnter an IPv4 address with a prefix or netmask to get the network, broadcast, host range, wildcard mask and usable hosts. Split into subnets.
- Password generatorCreate a random password with the length and characters you choose. It runs in your browser, uses secure randomness and shows how strong it is.