Navigate to > Upgrade (or Maintenance > Firmware Update ).
For users of the DWR-M960:
The D-Link DWR-M960 is a highly popular 4G LTE AC1200 router, widely used for providing reliable internet in areas without fixed-line broadband. To keep this device running securely and efficiently, maintaining the correct firmware is essential. firmware version dwr-m960-v1.1.49
Look at the sticker on the underside of your router. Ensure you download firmware specifically for your hardware revision (e.g., Ax or Bx), as using the wrong file can "brick" the device. Navigate to > Upgrade (or Maintenance > Firmware Update )