Reconfigure your WAN (PPPoE) and Wi-Fi settings manually (do not restore old backup from different firmware version).
the router: System Tools → Factory Defaults . Tenda D301 Firmware Update
A: Do not panic. Do not power off. Try accessing 192.168.1.1 in a new browser tab. If the interface loads, the update might have finished but the progress bar froze. If not, wait 5 more minutes, then power cycle the router. If it fails to boot, use the recovery mode above. Reconfigure your WAN (PPPoE) and Wi-Fi settings manually
Even if settings appear intact, residual old configuration data can cause conflicts. Do not power off
If you feel uncomfortable at any step, contact Tenda support or a local IT professional. One wrong click can brick the device, but with this guide, you have everything you need to succeed.
: Supports IPTV services, IPv6 protocol, and TR069 for remote management.