192.168.11.1
192.168.11.1 Router Admin Login
Default gateway for Buffalo AirStation and some NEC routers popular in Japan.
192.168.11.1 is the default IP address for Buffalo AirStation routers. Buffalo is a major Japanese networking brand with strong market share in Japan and a growing presence in North America and Europe. The company selected the 192.168.11.0/24 subnet as its standard gateway, one of the most unusual choices among consumer router manufacturers. If you own a Buffalo router, this is the address that opens your admin panel.
How to Login to 192.168.11.1
Connect to the Buffalo router through Wi-Fi or Ethernet. The default Wi-Fi name (SSID) and password are printed on the setup card included in the box or on a label attached to the device.
Open a browser and type 192.168.11.1 in the address bar. The AirStation admin panel loads with a login prompt. Enter admin as the username and password as the password. Note that Buffalo uses “password” as the literal default password, not “admin” like most other brands.
Some Buffalo models support the hostname buffalo.setup as an alternative to the numeric IP address. Both reach the same admin panel.
If the page does not load, verify the gateway by running ipconfig on Windows or ip route on macOS/Linux. The Default Gateway should show 192.168.11.1. For detailed help, see the router login guide.
Default Credentials
Buffalo uses a different default password from most competing brands:
| Device | Username | Password |
|---|---|---|
| Buffalo WXR-5950AX12 | admin | password |
| Buffalo WSR-5400AX6 | admin | password |
| Buffalo WSR-3200AX4S | admin | password |
| Buffalo WSR-1800AX4 | admin | password |
| Buffalo WSR-2533DHP | admin | password |
| Buffalo WXR-1900DHP | admin | password |
The username is always admin. The password is always password on factory defaults. This is consistent across the entire AirStation lineup. If the credentials fail, someone changed them during setup. Hold the reset button for 10 seconds to restore factory settings.
Routers Using This IP
Buffalo Technology was founded in 1975 in Nagoya, Japan. The AirStation brand covers the full range of consumer and small business wireless routers. Buffalo holds significant market share in Japan, where it competes directly with NEC and IO-DATA for the top position.
The current lineup includes Wi-Fi 6 models like the WXR-5950AX12 (flagship tri-band), WSR-5400AX6, and WSR-1800AX4. Older Wi-Fi 5 models like the WSR-2533DHP also remain in service. All of these default to 192.168.11.1.
Buffalo routers sold in Japan include features tailored to Japanese ISPs, such as PPPoE multi-session support. North American models focus on WPA3 security and parental controls.
Troubleshooting
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Page does not load in the browser. Confirm you are connected to the Buffalo router’s network, not an ISP modem or a different device. The most common mistake is being connected to the wrong Wi-Fi network. Switch to the Buffalo SSID and retry.
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“admin/password” is rejected. The password was changed from the factory default. If you do not know the current password, factory reset the router. Hold the reset button on the back panel for 10 seconds. After reboot, the credentials return to admin/password.
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buffalo.setup does not resolve. The DNS interception for this hostname depends on the router handling DNS requests. If your device uses a custom DNS server like 8.8.8.8, the hostname will not resolve. Use the numeric IP address 192.168.11.1 directly.
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Admin panel is in Japanese. Buffalo routers sold in Japan default to a Japanese interface. Look for a globe icon or language dropdown in the upper-right corner. Select English if available. Some older models do not offer English as an option.
This IP vs Other Gateways
192.168.11.1 is a distinctly Japanese address in the router world. While 192.168.1.1 and 192.168.0.1 dominate the global market through TP-Link, Netgear, and D-Link, the .11.1 address is Buffalo territory.
The subnet choice prevents conflicts with ISP gateways. Japanese ISPs frequently supply their own routers on the 192.168.1.0/24 range. Buffalo’s .11.0/24 subnet ensures that an AirStation connects behind ISP equipment without address overlap on the WAN or LAN side.
Other Japanese brands use their own unusual subnets. NEC Aterm routers default to 192.168.10.1 in some configurations. Japanese brands deliberately avoid the 192.168.1.0/24 range because ISP routers already occupy it.
Frequently Asked Questions
What is 192.168.11.1?
192.168.11.1 is the default gateway IP address for Buffalo AirStation routers. It opens the admin panel where you can configure Wi-Fi settings, change passwords, update firmware, and manage network security on your Buffalo device.
What is the default password for a Buffalo router at 192.168.11.1?
Buffalo AirStation routers use admin as the username and password as the default password. Some newer models may prompt for password creation during initial setup. Check the label on the bottom of the router for model-specific defaults.
Why does Buffalo use 192.168.11.1 instead of 192.168.1.1?
Buffalo chose the 192.168.11.0/24 subnet to differentiate its routers from Western brands and ISP gateways that use 192.168.1.1. This reduces IP conflicts when a Buffalo router is connected behind existing network equipment.
How do I reset my Buffalo router to factory defaults?
Hold the reset button on the back of the Buffalo router for 5 to 10 seconds until the power LED blinks. The router reboots and restores the factory default gateway at 192.168.11.1 with credentials admin/password.
Can I access my Buffalo router using a URL instead of the IP address?
Some Buffalo AirStation models support the hostname buffalo.setup as an alternative to 192.168.11.1. Type buffalo.setup in your browser address bar. If it does not resolve, fall back to the numeric IP address.