192.168.11.1 — Buffalo Router Admin Login
192.168.11.1 is almost exclusively a Buffalo address. AirStation routers, WZR and WSR models and Buffalo access points have used the 192.168.11.0/24 subnet for two decades, which makes the address a reliable fingerprint for the brand.
- Buffaloeffectively a single-brand address
- adminthe usual username
- Bridgechanges the address to 192.168.11.100
- 0apps or downloads needed
Quick answer
Connect to the router and open http://192.168.11.1. Buffalo units commonly use admin with the password password, and older models sometimes use root with a blank password. If the unit has been switched to bridge or access point mode, its address usually changes to 192.168.11.100 instead.
Which routers use 192.168.11.1
Buffalo standardised on this subnet across routers, access points and network storage bridges.
| Brand | Typical models | Username | Password |
|---|---|---|---|
| Buffalo | AirStation WZR series | admin | password |
| Buffalo | WSR and WCR home routers | admin | password |
| Buffalo | Older WHR and WBR models | root | (leave blank) |
| Buffalo | WAPM access points | admin | password |
| Buffalo | Units running DD-WRT firmware | root | Set by you |
| Buffalo | Bridge or AP mode | admin | password (at 192.168.11.100) |
The label on your own unit always overrides this table. For every other brand, see the full credential reference.
How to log in at 192.168.11.1
Buffalo hardware often ships with a physical mode switch on the back, and its position changes both the behaviour and the address.
- 01
Check the mode switch first
Many Buffalo units have a slider marked Router, Auto and AP or Bridge. In router mode the panel is at 192.168.11.1. In bridge or AP mode it usually moves to 192.168.11.100 and the router stops handing out addresses.
- 02
Connect to a LAN port
Plug into any numbered LAN port rather than the WAN or internet socket, or join the wireless network printed on the card that came with the unit.
- 03
Open the address
Type
http://192.168.11.1. If nothing answers and the mode switch is not on Router, tryhttp://192.168.11.100before assuming anything is wrong. - 04
Sign in
admin with password covers most of the current range. Older WHR and WBR models used root with the password field left blank. Units reflashed with DD-WRT use root and whatever password was set at the time.
- 05
Check which firmware you are running
Buffalo shipped some models with DD-WRT installed from the factory and others with their own firmware. The interfaces look completely different, so identify which one you have before following any guide.
The mode switch and the DD-WRT question
The hardware mode switch is the single biggest source of confusion on Buffalo equipment. It is a physical slider, usually on the rear panel, and it overrides software settings. Set to AP or Bridge, the unit stops routing, stops issuing DHCP leases and relocates its own management address, typically to 192.168.11.100. Nothing about that is announced anywhere, so a router that has been moved by a previous owner simply appears not to work.
Auto position is worse in one respect: the device decides for itself based on whether it detects an upstream router, which means the address can change between reboots. For predictable behaviour, pick Router or AP explicitly rather than leaving it on Auto.
The second thing is firmware lineage. Buffalo shipped several models with DD-WRT preinstalled under a Buffalo skin, and enthusiasts flashed many others. A DD-WRT unit uses root rather than admin, presents an entirely different interface, and has its own recovery procedure. If the panel you reach looks nothing like the Buffalo screenshots you have found, that is why.
Buffalo also produced network storage devices that share the subnet. A LinkStation or TeraStation on the same network sits in the 192.168.11.0/24 range and is reached by its own address, not through the router panel. People occasionally go looking for storage settings in the router and find nothing, because they are separate devices.
One last operational note: some AirStation models expose an AOSS button for one-touch pairing. It is convenient and it is also a variant of the same push-button pairing family that WPS belongs to. If the unit offers a way to disable it and you are not using it, that is worth doing.
When 192.168.11.1 will not open
Nothing answers at 192.168.11.1
Check the mode switch on the back. In bridge or AP mode the address is usually 192.168.11.100 instead. Auto mode can select either depending on what the unit detects at boot.
The login page looks nothing like the guides
The unit is running DD-WRT rather than Buffalo firmware. The username is root and the interface is entirely different.
admin / password is rejected
Older WHR and WBR models use root with a blank password. Try that before resetting, and check the label for a model-specific value.
My computer gets no IP address
In bridge or AP mode the unit stops serving DHCP. Set a manual address such as 192.168.11.50 with mask 255.255.255.0 to reach the panel.
The address changes after a reboot
The mode switch is set to Auto, so the unit picks its role at startup. Set it explicitly to Router or AP for consistent behaviour.
Longer diagnostic sequence: twelve fixes for a router login page that will not load.
Common questions about 192.168.11.1
What is the default password for 192.168.11.1?
Most Buffalo AirStation routers use admin with the password password. Older WHR and WBR models use root with the password field left blank. Units running DD-WRT use root with a password set during configuration.
Why did my Buffalo router move to 192.168.11.100?
Because the hardware mode switch was set to bridge or access point. In that mode the unit stops routing and relocates its management address.
What does the Auto position on the mode switch do?
It lets the router decide whether to act as a router or an access point based on what it detects upstream. That means the management address can change between reboots, so an explicit setting is more predictable.
How do I know if my Buffalo runs DD-WRT?
The interface looks completely different from Buffalo own firmware and the username is root rather than admin. Some models shipped with DD-WRT from the factory.
How do I reset a Buffalo router?
Hold the recessed reset button for several seconds while the unit is powered on. This restores the factory address and credentials and erases all settings.
Is my LinkStation reached through the router panel?
No. Buffalo storage devices sit on the same subnet but have their own address and their own interface, separate from the router.
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