@ManojAgrawal 

  @ManojAgrawal Do you see XPON settings 

Here the firmware version 

@ManojAgrawal Let me know if you received new firmware from TPLink support. 

There is some issues with my router firmware as well, unable to switch between GPON to EPON. 

In market two type rauter sell. Xpon & gpon.but model number is same .xc220-g3v.  Only firmware change.

1st i use existing blue color fiber patch code. Xpon registration failed.  When use green patch cord internet work fine no issue.  You can try green patch cord. Tplinn xc220-g3v  female connector is green . Try & update me.

Hello Have you faced this issue earlier with the Xc220 model? From your own experience you are suggesting us to use the APC Patch cord? Because as I am using the UPC patch cord directly connected to the optical cable. I have to ask the ISP technician to slice it. so that I can replace UPC with the APC. But I do not want to unnecessarily go for slicing as currently my NetLinkmodem is working just fine. 

Below is my current setup, but my connection is getting failed. Can you help me if I am doing anything incorrect on the setup perspective. 

If you guys have any latest firmware then please do share it. This is my mail id ananthmsakthi68@gmail.com