I have two ONTs -
Syrotech (which LCO forced me to buy from them as their OLT is also Syrotech and could lead to registration issues with OLTs of other brands, which is not true) and DBC ( I purchased from
Amazon, which I later configured myself and was working absolutely fine and also confirmed that their was no sort of authentication in place at the OLT level. Just use any
ONT, it will get registered and work without any problem. I used it for only a day and switched back to the Syrotech ONT. Since then the DBC ONT was just lying inside my cupboard.). Both ONTs are the same, only difference in branding.
Now, the sequence of events:
1. On 20.07.2020, the PON light went off! So, I took out my DBC ONT and connected it just to ascertain if the problem was with the line or ONT. To my surprise, the PON light didn't turn on either on the new DBC ONT which was actually brand new. So, no PON light on both ONTs, which were working absolutely fine earlier. So, I assured myself that since the PON light is not turning on even on the new DBC ONT, it must definitely be a problem with the OLT or OLT has started enforcing prior authentication of ONT as the line stats were good. Thus, I registered a complaint on Customer care.
2. On 21.07.2020, my LCO came to my residence for inspection and brought a new ONT (Same Syrotech model) with them. And as if by magic, when they connected the new ONT, the PON light turned green and everything started working as before contrary to my belief. So, they started to blame my
inverter which was placed near the ONT and forced me to buy the new ONT. I had no other option, so I bought it for Rs.3000/-. And this time, I put the ONT away from the inverter. And no authentication mode was enforced by the OLT as the connection status is "Registered, but not authenticated".
3. On 28.07.2020 at around 11pm, the PON light went off again and never turned back on to green. So, I registered another complaint.
4. On 30.07.2020, my LCO came again to my residence for inspection and brought a new ONT (Syrotech but different model) with them. And again as if by magic, when they connected the new ONT, the PON light turned green and everything started working as before. I tried arguing with them this time and told them that their claim of my inverter damaging the ONT has no logic and also told them that this time I have placed the ONT away from the inverter. I also told them that as the connection status was shown as not registered, it could be problem with the OLT. So, they replaced the ONT with the new one with the suggestion not to put the ONT and inverter in the same room (
) and luckily they didn't charge me anything this time.
I always used the ONT in bridge mode with its wifi and DHCP turned off and connected it to my
Tenda AC1200 for all functions and purposes. In all these cases, there was no LOS. I didn't connect anything new to the
router.
The LCO guys and myself are still confused as to what is causing this problem. Was it just a coincidence caused by a defective ONT? Were the OLT configuration of my PON really correct as claimed by the LCO? All these questions are still haunting me. I have a premonition that it will happen again soon.