D-link Dwr-m920 Firmware Update Page
Reconnect and verify
After reboot, log back in and check Status → Device Info to confirm the new firmware version.
Some newer versions of the DWR-M920 interface have a "Check for Update" button. D-link Dwr-m920 Firmware Update
Backup your configuration
In the router’s web UI: Management → Settings → Backup. Save the .cfg file. Reconnect and verify After reboot, log back in
Stable environment