WZR-HP-G300NH Professional Firmware r30356
March 2018
Copyright(C) 2018 BUFFALO INC.
Summary
This is WZR-HP-G300NH professional firmware r30356.
For version history, refer to the bottom of this page.
Software information
This firmware is version V24-SP2 professional firmware r30356 for the WZR-HP-G300NH. Do not use this firmware with any other device.
Minimum Requirements
- Compatible OS: Windows 7/Vista/XP/2000/Me/98SE; Mac OS X 10.4/10.5
- Compatible browser: Internet Explorer 7.x or later, Firefox 2.x or later, Safari 2.x or later
- A TCP/IP connection is required to install this firmware update.
- Wired or wireless network card.
How to update the firmware
Connect the AirStation to the same subnet of your network as your computer. For best results, connect the AirStation directly to your computer with a LAN cable.
- Start up Windows.
- Please confirm that both the LAN adapter and the AirStation's IP addresses are on the same network subnet. Refer to AirStation's user manual for instructions on changing IP address settings.
- Select [Run] from the Start Menu.
Enter "http://192.168.11.1/" (the AirStation's LAN side IP address) in the field and click "OK".
- Select how you want to change the firmware:
Updating Professional Firmware to the Latest Version
Change from User Friendly Firmware -> Professional Firmware
Updating Professional Firmware to the Latest Version
-
Navigate to the AirStation's web admin interface.

If you haven't created a account yet, enter a username and password. Click "Change Password".
-
This screen is displayed.
Click "Administration" from the upper menu.
When the login prompt appears, enter your new username and password.
-
Click "Firmware Upgrade".
- Click "Browse" to the right of "Please select a file to upgrade" and navigate to the extracted firmware file. The file should be in the form "wzrhpg300nh-pro-***.enc" where *** is the version number. Click "Upgrade".
- During the firmware update, the diag LED will flash for about 5 minutes. When the update is complete, the LED will turn off.
Do not turn off the AirStation until the firmware update is complete. If the unit is unplugged while the diag LED is still flashing, the AirStation may be damaged.
- Proceed to the next step, "Firmware Version Confirmation".
User Friendly Firmware -> Professional Firmware
- When the login prompt appears, enter "root" for the username and leave the password field blank. Note: if you configured a password, enter the password that you configured.
- Click "Update AirStation Firmware" at the top of the screen.

- Click "Browse" to the right of "Firmware File Name" and browse to the extracted firmware file with the filename wzrhpg300nh-pro-***.enc (where *** is the version number). Click "Update Firmware".
- During the firmware update, the diag LED will flash for about 5 minutes. When the update is complete, the LED will turn off.
Do not turn off the AirStation until the firmware update is complete. If the unit is unplugged while the diag LED is still flashing, the AirStation may be damaged.
- Proceed to next step, "Firmware Version Confirmation".
Firmware Version Confirmation
- To open the setup screen, refer to steps 1 to 3 of "How to update the firmware" above.
- To see Router Information, please click the "Status" tab at the top of the screen.
- Confirm that the firmware version is "build 30356".
Version History
build 30356
Bug Fixes
- Fixed the WPA/WPA2's security vulnerabilities.
- Fixed the dnsmasq's vulnerabilitiesiVU#973527j.
- Fixed the Samba's vulnerabilitiesiCVE-2017-15275j.
The differences between settings from the previous version are listed below.
- Removed "Summer Time(DST)" option. To set summer time(DST), configure "country-selection".
- Removed "vtysh OSPF BGP RIP router" from the "Advanced Routing" options.
- Removed the [Auto-Refresh] button located on [Setup]-[Networking]-[Current Bridging Table].
- Removed "RADIUS" from "Wireless Security Mode" options.
- Options for the AOSS button functions were moved to [Services]-[AOSS Button Function].
- Removed "XBOX Kaid" option.
- Removed "My Ad Network" option.
- Removed "Optimize for Gaming" option from "QoS Settings".
- The setting for IPv6 was moved to [Setup]-[IPv6].
- Removed "PPTP Status" from the "Wireless Status" status list.
- Removed "DHCP Server" from the "System Information" status list.
v24SP2-MULTI (08/19/10) std - build 14998b
Bug Fixes
- Updated OpenSSL to 0.9.8zb to fix CVE-2014-0224 and CVE-2014-5139 vulnerabilities.
v24SP2-MULTI (08/19/10) std - build 14998
First release
This Software is protected by copyright and other intellectual property laws and international treaty provisions.
Windows is a registered trademark of Microsoft Corporation in the United States.
Buffalo Inc.