Yesterday (26/11/2024) I doing some experiment on OMCI,
thought to make resilient change on OLT, because I did this:
I found out my VLAN Extended (ME 171) somewhat changed when plugging Black D-Link,
usually VLAN 500 only exist on PPTP, but suddenly VLAN 500 exist on VEIP as well.
so, I tried various ME to see what it trigger the change,
not sure what I did, at 2PM, my internet access was gone, PPPoE cannot dial,
even O5 status, I know this info can be faked, so I had to make a report,
reset port wont help, even CS restart D-Link remotely also not solve the issue,
even... change password wont solve...
thus, report must be open:

I been offline 24 hours and more, found out my account has been temporarily disabled.
it appear my privilege to ignore OLT alarm has been removed,
this not over yet, if this happen, I no need to call CS, just ask them and they willing to investigate.
now, has been solved:

I asking why this happen, it seem so many DIY and make kacau, TM had to do pro-active to prevent network wide outage...
I still allow to assist TM in use bridge ONU and PON Stick, so far my custom firmware are fine and within specs.