​​​Issue: When calling on any VOIP Service (Whatsapp, FB Messenger, Snapchat, Telegram etc), the phone does not have any access to Internet in the background while connected to WiFi

Explanation:  

I am currently in an area in Pakistan where I have Internet in the form of WiFi only. I do not get any Cellular Reception, so this issue of mine is only when connected to the WiFi connection provided by our Company (we are also given a static IP Address)

Like the title says, the call quality is absolutely normal, no delay no stuttering etc. But when I remain on call and browse the web, I get NO CONNECTION.

Google search shows as "you're offline"

I can't even open the 192.168.1.1 portal aswell

All while my call is running perfectly, no lags no nothing

Phone: Oneplus 8T, Android 11

Internet: Local Internet, provided through Wireless WiFi Router

I have basic knowledge regarding the router. From what I can tell

All are assigned a Static IP Address to the Wireless Routers.

No other changes at all

However, the other places where the same internet is given, it has no such problems at all. Never faced anything remotely like this

I believe there is a problem with the settings of the router, if anyone can help me with this I shall be immensely grateful. We can also discuss this issue on Email and then update the community regarding the solution

I have tried asking help from the ISP, Reddit, Quora, with little-to-no response

Thanks in advance!