iPhone iOS 12 Public Beta: all of a sudden no connection, no sound on WhatsApp, Skype phone calls

[bonotis]

Hi, I installed the beta a couple of days ago, everything worked fine for a while, and boom! all of a sudden yesterday evening, in both WhatsApp and Skype I can receive and make calls, but the calls will not connect and of course I cannot hear people on the other end and they can’t hear me.
Chats/text messages still work fine.

Bummer...

Any good ideas/solution ???

Thank you very much,
Kostis

 

[GIZBUG]

https://forums.macrumors.com/threads/ios-12-beta-2-―-bug-fixes-changes-and-improvements.2123912/

 

[bonotis]

Found it ! It was the Adblock app. I updated it and now everything is fine