I've had this problem for over half a year now, and have been basically unable to raid in that time because of it. Whenever I turn voice chat on and sometimes even when I don't, I get this error. Before christmas I'd never had this error before. It's pretty annoying, since I know it isn't my internet. I usually talk to friends over discord and can use the voice chats in other games just fine, but for some reason destiny 2 has just decided that I can't talk to others anymore. It even affects my text chat sometimes and I can't see other people's messages even though they can see mine. Please fix whatever spaghetti is holding together your chat networking.