192.168.11.1 is Buffalo’s address. The Japanese manufacturer put it on the whole AirStation range, from the WHR and WZR home routers popular in Japan and Southeast Asia to the WAPM business access points and the LinkStation NAS units in setup mode. Buffalo also stands out for its default credentials: rather than admin, the username is root, with no password, which trips up people who expect the usual admin / admin.
Default logins for devices on 192.168.11.1
Factory credentials by brand. Where a device prints a unique password on its label, that label overrides anything listed here. If a default fails, the password has been changed and a factory reset restores it.
| Brand / model | Username | Password | Notes |
|---|---|---|---|
| Buffalo AirStation (WHR, WZR, WSR) | root | (blank) | Home and small-office routers |
| Buffalo AirStation (newer WSR) | admin | password on label | Models from 2018 onwards |
| Buffalo WAPM / WAPS | admin | password | Business access points |
| Buffalo LinkStation (setup) | admin | password | NAS units before configuration |
| Buffalo DD-WRT models | root | admin | WZR-HP units sold with DD-WRT |
| Melco (Buffalo OEM) | root | (blank) | Regional rebrands |
How to log in at 192.168.11.1
- Connect to the router’s network. Join its Wi-Fi or plug in with an Ethernet cable. Mobile data, a VPN, or a different router’s Wi-Fi will not reach 192.168.11.1.
- Type the address in the URL bar. Enter
http://192.168.11.1exactly, in the address bar at the top of the browser, not in a search box. Some devices also answer to a hostname such as the IP only. - Accept a certificate warning if one appears. Routers that use HTTPS on the local network present a self-signed certificate. On your own router the warning is expected; choose Advanced and proceed.
- Sign in. Use the credentials from the table above or from the label on the router. Usernames are case-sensitive on some firmware.
- Change the admin password. Do this before anything else. Default credentials are public, and remote management, if enabled, exposes the login to the internet.
Common mistypes of 192.168.11.1
None of these open anything. Each is a slip that sends people to a search page or a timeout instead of the admin panel.
192.168.11.1 will not open: what to check
Wrong gateway. The most common cause by far. Read the Default Gateway from your device: ipconfig on Windows, Wi-Fi details on macOS, iPhone and Android, or ip route on Linux. If it is not 192.168.11.1, that is the address to use.
Typed into search. A page of search results means the address went to a search engine. Click the address bar, clear it, and type the IP again. Adding http:// in front forces the browser to treat it as an address.
HTTPS forced. Some browsers upgrade to https:// automatically and the router does not answer there. Type http:// explicitly.
VPN or private DNS. A VPN routes everything away from the local network; secure DNS in the browser can break router hostnames. Turn both off while you log in.
169.254.x.x address. If your device shows an address starting 169.254, it never received one from the router. Restart both devices, and check the cable or Wi-Fi connection.
Forgotten password. Defaults failing means someone changed the password. Hold the reset button for about ten seconds to return the unit to factory settings, which also erases its configuration and Wi-Fi name.
Find your router’s real address
| Device | Where to look |
|---|---|
| Windows 10 / 11 | Command Prompt → ipconfig → Default Gateway |
| macOS | System Settings → Wi-Fi → Details → TCP/IP → Router |
| iPhone / iPad | Settings → Wi-Fi → (i) → Router |
| Android | Wi-Fi → network details → Gateway (varies by maker) |
| Linux | ip route | grep default |
Related addresses
TP-Link, Netgear, Linksys, ASUS
192.168.0.1TP-Link, D-Link, Netgear, Tenda
192.168.10.1TRENDnet, Zyxel, some ISPs
192.168.16.1Realtek-based routers, ONTs
192.168.31.1Xiaomi & Redmi routers