Do not turn off the router or unplug the power adapter during the update process.
Allow the router 2 minutes to reboot back to factory default settings. Advanced Fix: Recovering a Bricked Tenda V300 (TFTP Method) tenda v300 firmware fix
If your router is corrupted, its internal DHCP server cannot assign an IP address to your computer. You must set one manually. Open the on your Windows PC. Go to Network and Sharing Center > Change adapter settings . Right-click your Ethernet adapter and select Properties . Double-click Internet Protocol Version 4 (TCP/IPv4) . Do not turn off the router or unplug