Error - BLZBNTBNA00001388

When I’m in a voice chat with a friend I will sometimes get a random disconnect and when I try to connect back I get “BLZBNTBNA00001388” this error and Battle.net bugs out and I have to restart my whole app to be able to reconnect. The other way I can get back in the call is if I ask the person I’m talking to close the call and call me again. I contacted a Tech Specialist at Blizzard and he suggested somethings that could fix the issue but sadly it did not fix it.

i have the same problem