If you’re a TM UniFi subscriber with the router, as shown above, the much-awaited firmware update has finally arrived.
D-Link had earlier released its new firmware for retail and this new version is catered for DIR-850L units that came with your TM UniFi installation.
According to the changelog, this firmware will add “@unifi” for your wireless SSID. It isn’t clear if it will retain your existing settings so you probably might need to reconfigure your WiFi SSID and password after the update. Included in the zip file is a PDF guide which gives you step by step instructions on how to upgrade your DIR-850L firmware.
The firmware for both retail and TM versions can be found here. It is recommended that you proceed only if you have your TM UniFi username/password with you. If you don’t have those details, you can call up TM’s customer service hotline at 100 for assistance. It is best to update your router’s firmware via a desktop web browser.
To recap, the security risk for these D-Link routers was brought to light by Singapore’s Cyber Security Agency and IMDA in a joint statement. If exploited, hackers can take control of your router without having to know your username and password, which would put your information at risk. Before the new firmware was released, users were urged to disable WAN remote admin as a temporary solution. You can read the full advisory here.