Airtel Fiber Connection with Syrotech GPON device

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Location
INDIA
ISP
Airtel Fiber
I have a TP-Link ER605 that I use for the dual WAN support. I have a local ISP internet connection that I have connected to the default WAN port of ER605, and it is configured using PPPoE, and it is working great.

Now, last week I got an Airtel fiber connection, which came with a Titanum-2122A router. Below is the device information.
AIRTEL-DEVICE-INFO.jpg


I called the Airtel support and asked them to enable bridge mode so that I can connect it to connect with ER605. The technician on the call said they enabled the bridge on all LAN ports (2 LAN ports) on the Airtel router. So I connected the Airtel router to my ER605 and entered the PPPoE credentials that I got from the Airtel router settings page by using the Inspect Element on the browser, but the connection could not happen. Then I checked the Airtel router, and I could not see any change where it would say that bridge mode is enabled. The service request got closed without any resolution. I will make another request and see what happens.

Meanwhile, I had Syrotech SY-GPON-1000R-DONT ONT lying around. Based on the info I found on this forum, I thought of bypassing the Airtel Router completely. So I logged into the Syrotech ONT and set the GPON serial number from the Airtel Router and kept the VLAN setting to transparent. Below are the snapshots of these settings.
ONT-SETUP.jpg

ONT-VLAN-SETUP.jpg


On the ONT Status page, I could see Authentication Successful and see the signal strength. Then I connected Syrotech ONT to my ER605 on the WAN1 port and added the following details.
ER605-SETUP.jpg

But I can not connect through ER605. I checked the ER605 logs, and it says PPPoE failed to connect to the server because sending PADI times out.

If I have missed some steps in between, then please let me know, as I would like to get this working without using the Airtel router.
 
First access the telnet of the device, and check the VLAN filtering table and OLT data with omcicli mib get 84 and omicli mib get 131.
If the OLT table shows 0x00 and VLAN filtering table is blank, then the ONU isn't registering towards the OLT.
If it's showing VLAN table other than 100/660, then use those.
As for this Syrotech, the firmware is different, and additional OLT options are missing from the screenshots, those are needed in order to determine the OLT support.
 
Hi @IfranAli, thank you for your response.
I am currently unable to log in to telnet as the credentials that I tried are not working. Do you have any recommendations for the ONU that I can get for Airtel fiber?
 
@object08 I would suggest XZ000-G3v1/v2(v2 being more readily available), Digisol DG-GR6011 or VSOL V2802RH (Only if you want 2.5GbE). Best bet would be XZ000-G3 OR DG-GR6011.
For the current ONU, I think there is a firmware from Syrotech, possibly older firmware could be flashed, but depending on the hardware version, it might not support it.
 
@IfranAli Below is the Syrotech device information. The telnet username for this device is root, but I can't figure out the password. If you have a firmware that I can use, please let me know. OR if you know a way to reset this device so that I can log in to telnet. The factory reset did not work.
SYRO-DEVICE-INFO.jpg
 
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