After a firmware update, old settings in NVRAM can cause conflicts.
Because Tenda manufactures many different router models, it is crucial to download the file from the official source. Third-party sites (like 4shared or random file lockers) often host modified or malware-laced firmware. tenda d305 firmware update link
Wait for the progress bar to finish. The router will automatically reboot once complete. Step 4: Verify and Reconfigure After the reboot, log back into the management page at 192.168.0.1 System Status to confirm the new firmware version is active. After a firmware update, old settings in NVRAM