When I join a game while I’m in a discord server, I lose the ability to speak in both the discord server and in Overwatch voice chat. This doesn’t happen with other games like Minecraft for example. When the game finishes and I’m back on the main menu, I can talk again. When I’m not in a discord server I can talk in Overwatch voice chat. I’m on PC windows 8.
If Overwatch is working fine by itself, and you only experience problems when Discord is open, this sounds like a Discord problem. That being said, you might be able to resolve it by toggling “Enable Quality of Service High Packet Priority” in Discord’s Voice & Video Settings menu.
Just wanted to add on to here or if anyone else experiencing similar issues stumbles onto this thread. It’s worth checking that exclusive mode isn’t enabled since this can limit what permissions the application has. If one application takes control, it can cause another application to not work properly.