Please select a model and download firmware. You have to match the exact version to prevent issues.

Buffalo Firmware Download

Buffalo WZR-450HP2

Download Factory I Sysupgrade I tftp.bin (SSL)

Buffalo WZR-600DHP

Download Factory I Sysupgrade I tftp.bin (SSL)

Buffalo WZR-HP-G450H

Download Factory I Sysupgrade I tftp.bin (SSL)

Buffalo WZR-HP-G300NH

Download Factory I Sysupgrade I tftp.bin (SSL)

Buffalo WZR-HP-AG300H

Download Factory I Sysupgrade I tftp.bin (SSL)

Buffalo WZR-HP-G300NH2

Download Factory I Sysupgrade I tftp.bin (SSL)

Buffalo WHR-300HP2

Download Sysupgrade (SSL)

Buffalo WHR-600D

Download Sysupgrade (SSL)

Buffalo WBMR-HP-G300H

Download Sysupgrade (SSL)

Buffalo WCR-1166DS

Download Factory I Sysupgrade (SSL) I Flash instructions

Buffalo BHR-4GRV2

Download Factory I Sysupgrade (SSL)

Buffalo WHR-1166D

Download Sysupgrade (SSL)

Buffalo WMR-300

Download Sysupgrade (SSL)

Buffalo WSR-1166DHP

Download Sysupgrade (SSL)

Buffalo AirStation WSR-600DHP

Download Sysupgrade (SSL)

This section describes actions that might damage your device or firmware. Proceed with care!

The installation of OpenWrt firmware is device-specific.
Procedures for specific devices should be found in the OpenWrt wiki.
See OpenWrt Table of Hardware for available procedures.
If your device is not listed, information on this page may be helpful.


Please reset router to factory settings to avoid problems with some previous configuration.
Connect your computer by network cable to the Buffalo router port 1.
Please log in to the Buffalo web interface at and login using admin as username and password as the password.
Go to the Administration/Firmware Upgrade section.
Click Browse and navigate to the location where the factory version for your model is downloaded.
Click the Upgrade button.

The firmware upgrade procedure can take a few minutes.
During this process, you will see information about the processing.

If OpenWRT firmware was previously installed on your router, be sure and disable Keep settings option during firmware upgrade.

Do not power off the router during the firmware upgrade, as it can cause the device to crash or become unusable.

Reconnect LAN cable or Disable/Enable NIC card in order to get new valid IP address in 192.168.45.x range from router.

Configuring parameters

Start your browser and in URL field type
Username : admin
Password : admin

Press the Login button to access to Status tab.

On Status page, you will see a MAC address of your OpenWRT router which will be used in the SignUp process.
After selecting your HotSpot name, select as HotSpot model Bitmain, and add your MAC address from Status tab.

From Setup page configure your OpenWRT router.
Be sure and set Autostart option. This option is not active by default.
Here you can set a new Administrator password for access to the router setup and configuration. Save changes.
Enable WiFi, set SSID name and click Save.
As DNS Server select Custom and set

Please note, if the DNS IP address isn’t, the whitelist will have no effect.

Select Network Protocol and Save changes.
By default as Network Protocol is set DHCP, but you can choose Network Protocol based on your needs.
Our recommendation is to use DHCP Network Protocol.
When you finish setup, restart the router to apply changes.

If you need help with configuration, please go to starthotspot.com and contact our tech support. We’ll be glad to help you.

Updated on February 7, 2020

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