TWCGPON657 bandwidth limit to 30Mbps

[ccy]

My ISP is Maxis 100Mbps package.

I am using TWCGPON657 SFP stick. I flash the firmware to C00R657V2801F_V1.9.0-220404.tar.

I also follow the instruction perform necessary setup for the SFP stick. I am able to connect to the ISP via PPPoE.

However, when perform speedtest. The download speed cap at 30Mbps and upload is below 1Mbps.

Plug the fiber cable back to original Maxis/TM GPON, the speed is usual 100M/50M.

I also make sure the SFP port of network switch is set to 1000M.

This is the Chipset of the GPON stick:

# cat /proc/cpuinfo
system type             : RTL8672
processor               : 0
cpu model               : 56322
BogoMIPS                : 112.23
tlb_entries             : 64
mips16 implemented      : yes

Any steps I didn't do right?

[ccy]

My previous ONU is huawei HG8240H5