I have an iPhone 11. Yesterday while it was running iOS 13, all was fine, I could make WhatsApp calls over my Wi-Fi. I updated to iOS 14 in the morning. And now when I'm trying to make a call on WhatsApp, I get this message.
I can still call normally over cellular data, but not over my home Wi-Fi. The receiving end clicks on "accept call", but nothing happens.
Internet suggests me to use VPN, since my country is blocking WhatsApp. I highly doubt it, since my country is Germany. I have deleted and installed WhatsApp again - but it didn't help. It's a corporate phone, but before today everything was working fine, so I doubt it's them.
Anybody has ever had this kind of problems?