As ISPs upgrade their OLT (Optical Line Terminal) equipment, your ONT needs updated firmware to communicate efficiently.
Check your service provider’s "Downloads" or "Device Support" page. hg8345r firmware top
Some firmware updates reset the login to factory defaults. Try admin / password . As ISPs upgrade their OLT (Optical Line Terminal)
Do not turn off the device. The ONT will reboot automatically once finished. Troubleshooting "Top" Firmware Issues If you’ve updated and things aren't working: Try admin / password
Finding the correct file can be tricky because Huawei typically does not provide direct downloads to end-users (they prefer dealing with ISPs).
Modern firmware often streamlines the web GUI, making it faster to change your WiFi password or port-forwarding settings. Top Firmware Versions for HG8345R
Navigate to System Tools > Firmware Upgrade . Select the .bin or .tar file you downloaded.