i can always bypass Huawei with dialling/PPPPoE from my WIFI routeranother trickery that could be used is if your hawamei supports bridge mode than it will act as mediaconverter
bridge fiber to any of the ethernet port
Followed by testing it using ethernet port of laptop/ PC
if this is successful , you buy a normal router or check your new tplink could apply PPPOE on the LAN ethernet ports or not if not check for custom firmware's which could allow you that
Seen all the videos . I had a fully functional internet on Tplink before LCO came and removed it . Modem was working fine but crashing the switch . But no issues on my internet with Tplinkif you have SSH access enabled than that process would use cryptographic services shortly the PID could be known as crypto similarly if your GUi uses http"s" to provide secure communication that too will use cryptographic services
this video might help someone .the chap shares BSNL`s test account for internet