Maintenance for the week of August 3:
• PC/Mac: No maintenance – August 3
• ESO Store and Account System for maintenance – August 4, 5:00AM EDT (9:00 UTC) - 4:00PM EDT (20:00 UTC)
When this happens again, besides waiting 10 minutes you should power-cycle your PS4. Afterwards try relogging and see if you still get disconnected with Error 307.