Open a web browser and enter the default IP address: (or 192.168.1.1/192.168.2.1 depending on your specific region's model).
From the dropdown or sub-menu, select or Software Update . Step 3: Upload the Firmware File
After the reset, you will need to set up the Tenda D305 again from scratch: log in with the default admin / admin credentials, then configure your ADSL internet connection, set up your Wi‑Fi network name (SSID) and a strong Wi‑Fi password, and re‑apply any port forwarding rules or QoS settings you previously had in place.
: Log back into your router settings (default password is often admin ).
Navigate to the or Download section and search for your product model “D305” . Locate the latest firmware file available for your region and hardware version. Pay close attention to the file name – it should match your device’s current hardware revision. Download the file to an easy‑to‑find location on your computer, such as your Desktop or Downloads folder. Update Software in TENDA D305
Before starting, connect your computer to the router using an Ethernet cable . Do not perform the update over Wi-Fi, as a wireless disconnection during the process can permanently damage the router.
Log in with the default credentials: Username and Password admin . Perform the Upgrade
and go to: http://192.168.1.1 (the default recovery page will appear even if firmware is corrupted).
In this detailed guide, you will learn exactly how to update the software in your TENDA D305 safely, what precautions to take, and how to troubleshoot common issues. Open a web browser and enter the default IP address: (or 192
Tenda D305 300Mbps Blazing-fast & Stable ADSL2+ Modem Router
Check the status homepage to verify that the reflects the new number you just installed. Troubleshooting Common Update Issues
The Tenda D305 is a mature model. If Tenda stops releasing new firmware for this device, your router will no longer receive security updates. At that point, the safest course of action is to replace the D305 with a newer router model that is still actively supported by the manufacturer. Continuing to use an unsupported router on the internet exposes your entire home network to known vulnerabilities that will never be patched.
Click to download your current network configuration file ( .cfg ) to your computer. Phase 4: Executing the Software Update : Log back into your router settings (default
Use an Ethernet cable to connect your computer’s LAN port to any yellow LAN port on the back of the Tenda D305 router. Power on the router and wait about one minute for it to fully boot up.
Ensure your router and computer are plugged into a stable power source. If the router loses power during the update, it may cause permanent hardware failure.
: Visit the Tenda Support Download Center and search for
Always download firmware from the official TENDA support page for the D305 V1/V2 (check your hardware version on the bottom label).