How to Recover Your WiFi Password from a Fiber Modem

If you’ve ever had to type that long, messy WiFi password into every new device, you know how easy it is to forget. Maybe the sticker on your fiber modem has worn off, or you changed the password and didn’t write it down. This guide is for anyone with a fiber optic internet connection who needs to recover the WiFi password directly from the modem. By the end, you’ll have the password in hand—no reset required.


Before you start, know that you’ll need physical access to the modem and a device (like a laptop or phone) that can connect to it via Ethernet cable. We’ll walk through logging into the modem’s admin panel, finding the WiFi settings, and revealing the password. If your device is already connected to the WiFi, you might also try the saved WiFi password recovery method instead.


What You’ll Need


  • Your fiber modem (you can see it and reach its ports)
  • A computer or laptop with an Ethernet port (or a USB-to-Ethernet adapter)
  • An Ethernet cable (typically comes with the modem)
  • The modem’s admin username and password (often printed on a sticker on the modem; common defaults are admin/admin or admin/password)
  • A web browser (Chrome, Firefox, Edge, etc.)


If you don’t know the admin credentials, you may need to factory reset the modem (check the pitfall section). But for most people, the defaults work.


Step 1: Connect Your Computer to the Modem via Ethernet


Plug one end of the Ethernet cable into any LAN port on your fiber modem (usually ports labeled 1, 2, 3, or 4). Plug the other end into your computer’s Ethernet port. This direct connection bypasses WiFi, so you can access the modem’s settings even if you don’t know the password.


recover wifi password from fiber modem Ethernet cable connected to fiber modem LAN port

Step 2: Find the Modem’s IP Address


Your modem’s admin interface lives at a specific IP address, usually 192.168.1.1 or 192.168.0.1. To find it: On Windows, open Command Prompt and type ipconfig. Look for ‘Default Gateway’ under your Ethernet adapter. On Mac, go to System Settings > Network > Ethernet, then click Advanced > TCP/IP. The Router address is your modem’s IP.


recover wifi password from fiber modem Windows command prompt ipconfig showing default gateway

Step 3: Log into the Modem’s Admin Panel


Open a web browser and type the IP address you found into the address bar. Press Enter. You’ll see a login page. Enter the admin username and password (check the sticker or try admin/admin). If it works, you’re in. If not, see the pitfalls below.


recover wifi password from fiber modem Fiber modem admin login page with username and password fields

Step 4: Navigate to WiFi / Wireless Settings


Once logged in, look for sections like ‘Wireless’, ‘WiFi’, ‘WLAN’, or ‘Security’. The exact wording varies by modem brand (Huawei, Nokia, ZTE, etc.). Click through until you see your WiFi network name (SSID) and a field labeled ‘Pre-Shared Key’, ‘Passphrase’, or ‘Password’.


recover wifi password from fiber modem Fiber modem WiFi settings page showing SSID and password field

Step 5: Reveal the WiFi Password


The password is often displayed but partially hidden with dots or asterisks. Look for a ‘Show’ or ‘Reveal’ checkbox or icon next to the password field. Click it to see the plain text. If there’s no reveal option, the password might be visible directly (often in plain text). Write it down immediately.


recover wifi password from fiber modem WiFi password field with reveal checkbox clicked showing password

Step 6: (Optional) Change the Password to Something Memorable


While you’re in the settings, consider changing the WiFi password to something you’ll remember. Use a mix of letters and numbers. Save the changes. Your devices will disconnect and need the new password.

Common Pitfalls


  • The admin password was changed from default: If the default credentials don’t work, and you don’t know the new one, you’ll have to factory reset the modem. Look for a small reset button on the back; press and hold for 10 seconds with a paperclip. This erases all custom settings, including your WiFi password. After reset, the password reverts to the sticker value. If you need a more comprehensive troubleshooting approach, check out the WiFi password recovery troubleshooting guide.
  • The password field is hidden with no reveal option: Some modems show only asterisks and don’t provide a way to view the password in plain text. In that case, you can change the password to a new one (write it down) or factory reset. The easiest WiFi password recovery method often involves simply changing it.
  • Ethernet connection not working: Make sure you’re using a functional Ethernet cable and that your computer’s Ethernet adapter is enabled. Try a different LAN port on the modem. If the modem’s DHCP isn’t working, you may need to set a static IP (192.168.1.100) manually.


Where to Next?


Now that you’ve recovered your WiFi password, you might want to save it in a safe place or export it for future use. If you ever face a similar situation on a different network, the WiFi password recovery without router reset method works on most routers. And if you need to connect a new device that doesn’t have an Ethernet port, you can use the password you just found.

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