Maintenance for the week of April 6:
• ESO Store and Account System for maintenance – April 8, 9:00AM EDT (13:00 UTC) - 6:00PM EDT (22:00 UTC)
We are currently investigating connection issues some players are having on the European megaservers. We will update as new information becomes available.
You don't have to pvp in Cyrodiil at all, the ironic fact about "PvP event" is that all you need to do is to do some PvE quests in PvP location. Depending on faction you have Bruma, Cropsford and Vlastarus daily quests - 9 quests per location per character, meaning you can get up to 162 boxes just from one of those locations, if you decide to do it in the other ones you can triple that number
"We are currently investigating connection issues some players are having on the European megaservers. We will update as new information becomes available."
— They always claim they’re “investigating” the causes, but in reality they’re just waiting until the PC EU players go to bed. Once that happens, you can suddenly log in again and they happily mark the issue as Fixed.