192.168.100.1 Login Admin
To access the router admin page, simply enter 192.168.100.1 into your web browser's address bar or click the link below. This will direct you to the login page of your router's control panel.
The IP address displayed here is typically the default address for your router’s admin interface. However, please ensure that you are connected to the same network as the router for this to work correctly. If you are using a different network or have made custom settings, the address may vary.
How to log in to 192.168.100.1
- Connect to the router. Join its Wi-Fi network or plug a computer into one of its LAN ports. Mobile data will not work.
- Open the admin page. Type
http://192.168.100.1into the browser’s address bar (not the search box) and press Enter. - Accept the certificate warning if one appears. Routers use self-signed certificates, so “Not secure” on this page is normal inside your own network.
- Enter the username and password. Look at the sticker on the bottom of the router first: many models print a unique password there. The most common factory pair for this address is
admin/password; the full list is in the tables below. - Change the default password in the administration or system section as soon as you are in.
Default logins for IP 192.168.100.1
Who uses 192.168.100.1 by default
Router models in our database with 192.168.100.1 as the default address: 22. Brands: 11.
Brands with the most models on 192.168.100.1
| Brand | Models |
|---|---|
| Ambit Microsystems | 4 |
| Arris | 3 |
| Motorola | 3 |
| Ubee | 3 |
| Unbranded | 2 |
| ZyXEL | 2 |
| Askey | 1 |
| Lenovo | 1 |
Most common default username and password on 192.168.100.1
| Username | Password | Models |
|---|---|---|
admin |
password |
4 (18%) |
admin |
admin |
4 (18%) |
root |
root |
3 (14%) |
user |
user |
3 (14%) |
| — | — | 2 (9%) |
admin |
motorola |
2 (9%) |
“—” means there is no factory value: the field is left empty or a unique password is printed on the router’s label.
Default credentials work only until someone changes them. If none of these pairs fits, the password was changed; a factory reset restores the default.
Updated October 7, 2026 · Source: RFC 1918, Address Allocation for Private Internets
192.168.100.1 is your modem, not your router
On most cable internet connections, 192.168.100.1 is the address of the cable modem itself. The modem answers on it even when your own router uses a completely different network such as 192.168.1.x, so you can usually open the page from any device in the house.
That makes 192.168.100.1 the place to check the line itself: whether the modem is connected to the provider, the signal levels, and the event log. Wi-Fi name, passwords and port forwarding are not here; they are on your router.
Which devices use 192.168.100.1
- Cable modems from Arris (including SURFboard), Motorola, Ubee and Netgear. Status pages often open without a password; newer Arris models ask for
adminand a password that is eitherpasswordor the last digits of the serial number. - Huawei fiber terminals (ONT) supplied by many providers also use 192.168.100.1 for their local page, usually with a login printed on the device.
What to look at on the status page
- Connection status. “Operational” or “Online” means the modem is registered with the provider.
- Downstream power and SNR. If the values are marked as out of range or change sharply, the problem is in the cable or the provider’s line, not in your Wi-Fi.
- Event log. Repeated “T3” or “T4 timeout” messages are the evidence a support agent will ask for.
When 192.168.100.1 does not open
- Your connection is not cable. DSL and most fiber routers do not use this address; check your gateway instead.
- Your router blocks it. Connect a computer directly to the modem’s Ethernet port, restart the modem and open the address again.
- The modem is part of a provider gateway. Combined modem-routers usually show the line status inside the gateway’s own page, for example at 10.0.0.1.
192.168.100.1: frequently asked questions
Why can I open 192.168.100.1 when my router is 192.168.1.1?
The cable modem keeps its own fixed address for diagnostics. Your router forwards requests for it toward the modem, so the page opens from your home network even though it is a different subnet.
What is the password for 192.168.100.1?
Many cable modems show the status page without a login. Newer Arris models use admin with the password password or a password based on the serial number. Fiber terminals print their login on the device.
Can I change Wi-Fi settings at 192.168.100.1?
Usually not. A standalone cable modem has no Wi-Fi; Wi-Fi is configured on your router at its own address.
