redlink1979 wrote: »Next PS4's system upgrade will make group chat for 16 people possible. So that will be a viable way to avoid ESO's vc.
https://help.elderscrollsonline.com/app/answers/detail/a_id/30349/~/why-do-i-keep-getting-the-voice-chat-is-unavailable-message-on-playstation-4?
Honestly the top section is complicated so I would try the steps further down first. Opening ports on the router should be a last resort, since I believe 90% of the PS4 population gets by just fine without doing that.
These two settings are worth checking though:
-Set the MTU Settings to Automatic.
-Set the Proxy Server to None.