Updating your D-Link DWR-921 Revision C3 router ensures stability and patches critical security flaws. The most recent official firmware version for the is v1.01.3.016 , released in February 2021. Official Firmware Downloads
DWR-921C3 V01.01.3.014.bin (9.31 MB) Download. DWR-921/C3 Firmware Release Notes - Only suitable for DWR-921/C3. ================= D-Link Australia (Non-US) DWR-921 :: H/W Rev. C3 :: F/W v3.0.2 & v4.0.0
To ensure compatibility, always verify that your router's hardware version matches the firmware you are downloading. The hardware version (e.g., C3) is typically found on the sticker located on the underside of the device.
Enhances the "Keep Alive" function and fixes failover issues between WAN and LTE.
Fixes a bug where SIM cards with active PINs were not recognized.