Wifi calling not working ONLY on Home wifi

[WealthyKing]

Hello, i am on Android 10 DerpFest Offical Rom April 07/04/20, Carrier : Jio

I am facing a very weird issue.
Wifi calling works for me when connected on all wifi network except my home one.
So when i connect to my home's wifi it never works but on other wifi network it works...

Here's the interesting Part:
When i connect to my home's wifi from my pc and make a hotspot for my home's wifi to tether it and connect my phone to that hotspot then it works but why doesn't it directly work with my home wifi..

So if i connect my phone to "Max" , wifi calling works but if i connect directly to "Demonetix" it doesn't.
any way i can debug this or provide logs for this issue? Or any solutions?
I have wifi calling enabled and "prefer Wifi" enabled too.. any ideas?

I have two wifi connections (Max and Demonetix)

Demonetix -> My Router
Max is -> My Pc's hotspot connected to Demonetix -> Router

when i connect to Demontix it doesn't work but when i connect to Max it works


Here's the logs:
On wifi "Max" where it works (see highlighted lines:-

On wifi "Demonetix" - Where it doesn't work

Notice there is no
`[MOBILE (IWLAN) - 101] EVENT_NETWORK_INFO_CHANGED, going from CONNECTED to CONNECTED`

Sometimes it disconnects instantly.. (only on demonetix):