192.168.100.1 Login: Access Your Router Admin Panel

The IP address 192.168.100.1 is the default admin gateway for a lot of modem-router combo units, including PTCL fiber and DSL modems across Pakistan, most Huawei ONTs, and cable modems from Motorola, Arris, Zyxel, and Netgear. If you typed it into your browser and the page will not load, or you do not know which username and password to use, this guide explains the complete login process and how to resolve the issues you’re most likely to face.

What Is 192.168.100.1?

192.168.100.1 is a private IP address, which means it only works on your local network and cannot be reached from the public internet. Your modem or router uses it as the address for its admin panel, the web page where you change your Wi-Fi name and password, view connected devices, and adjust security or port settings.

This particular address shows up far more often on modem-router combos than on standalone routers. Manufacturers pick it to avoid clashing with the more common 192.168.1.1 and 192.168.0.1 gateways, which matters in setups where a modem and a separate router are both on the network. In Pakistan, the device behind 192.168.100.1 is usually a PTCL-supplied Huawei modem, so most of this guide focuses on that case while still covering other brands.

How to Log In to Your Router at 192.168.100.1

1. Connect your phone or computer to the modem, either over Wi-Fi or with an Ethernet cable. A wired connection is more reliable while you are changing settings, because adjusting the Wi-Fi will not drop your session.
2. Open a web browser such as Chrome, Firefox, Edge, or Safari.
3. Click the address bar at the top of the browser. This is the bar that shows the web address, not the search box.
4. Type 192.168.100.1 carefully and press Enter. Type the number one, not the letter L, in each position. If the plain address does not work, try http://192.168.100.1 with the prefix.
5. Wait for the login page to load. If a certificate warning appears, click “Advanced” and continue. Modem panels use self-signed certificates that browsers flag automatically, and it is safe on your own network.
6. Enter the username and password. Use the table below if you have never changed them.
7. Click Login to reach the admin dashboard.

Default Username and Password for 192.168.100.1

The right credentials depend on the brand of your device. These are the most common combinations for modems and routers that use 192.168.100.1:

Router Brand / Device	Default IP	Default Username	Default Password
PTCL (Huawei ONT, user account)	192.168.100.1	admin	admin
PTCL (Huawei ONT, full access)	192.168.100.1	telecomadmin	admintelecom
Huawei (general)	192.168.100.1	admin	admin
Huawei (older models)	192.168.100.1	root	admin
Arris	192.168.100.1	(leave blank)	(leave blank)
Motorola / Zyxel / Netgear	192.168.100.1	admin	admin
TP-Link	192.168.100.1	admin	admin

If these credentials do not work, your password may have been changed by a previous user or your ISP. Check the sticker on the bottom or back of the device for printed login details, then see the reset section below.

A note specific to PTCL fiber customers: the standard admin/admin account lets you change your Wi-Fi name and password, but some advanced settings are locked. The fuller telecomadmin account unlocks more, though PTCL sometimes changes that password before shipping the unit. If telecomadmin/admintelecom is rejected, the working credentials are usually printed on the modem label.

What to Do If You Cannot Log In

The page will not load. Confirm that 192.168.100.1 is really your gateway address before anything else. Many devices use a different one.

• On Windows: open Command Prompt, type ipconfig, and read the “Default Gateway” line.
• On Mac: open Terminal and type netstat -nr | grep default.
• On Android or iOS: open your Wi-Fi settings, tap the connected network, and look for the gateway or router field.

Use whatever address appears there instead.

You typed the address with a letter L

A very common mistake is typing “192.168.l00.1” with a lowercase L in place of the number one. That is not a valid IP and your browser will treat it as a search term. Retype it using the digit one in every spot.

You landed on search results

That means the address went into a search engine rather than the browser’s address bar. Click the address bar at the very top of the window, clear it, type 192.168.100.1, and press Enter.

The login page appears but rejects your password

Try each default in the table above, remembering they are case-sensitive. If nothing works, the password has been changed, and a factory reset is the next step.

You are not connected to the modem

192.168.100.1 only resolves when your device is on that modem’s network. If your phone slipped onto mobile data or another Wi-Fi network, the page will not open. Reconnect to the correct network first.

There is a separate router in the chain

In many Pakistani homes the PTCL modem feeds a second Wi-Fi router. If you are connected to the second router, 192.168.100.1 may not reach the modem behind it. Connect directly to the PTCL modem by cable, or check the second router’s gateway address instead.

How to Reset Your Router to Factory Settings

A factory reset erases everything you have customized: the Wi-Fi name, the Wi-Fi password, any port forwarding, and the admin password. The device returns to how it shipped, so only reset if you are locked out and have no other way in.

1. Find the RESET button. On most modems it is a small recessed pinhole on the back or bottom, labeled “RESET.”
2. Use a straightened paperclip or pin to press and hold it.
3. Hold for about 30 seconds. The indicator lights will blink or briefly go dark when the reset takes hold.
4. Release and wait roughly a minute for the modem to restart.
5. Log in with the factory defaults from the table above, or with the credentials printed on the device label.

For PTCL fiber connections, be aware that a full reset can also clear the internet (PPPoE) settings that link the modem to PTCL’s network. If your connection does not come back after the reset, you may need your PTCL username and password, or a call to PTCL support, to restore service.

How to Change Your Router Admin Password

The default admin password is publicly known, so leaving it in place means anyone on your Wi-Fi can open your modem settings. Change it right after your first login.

1. Log in at 192.168.100.1 with your current credentials.
2. Find the account or system section. It is usually labeled “System Tools,” “Administration,” “Management,” or “Security.”
3. Choose the option to change the admin or login password.
4. Enter your current password, then type the new one twice.
5. Save or apply the change.

Pick something at least 12 characters long, different from your Wi-Fi password, with no personal details in it. Store it somewhere safe, because forgetting the admin password leaves a factory reset as the only way back in.

Conclusion

Once you are inside the panel at 192.168.100.1, change the default admin password before doing anything else, since that single step removes the easiest way for someone on your network to take over your modem settings. If the address simply will not load, do not assume the device is broken. Confirm your real gateway with ipconfig or netstat first, and remember that a second Wi-Fi router in the chain is the usual reason 192.168.100.1 stops responding.