I have tested pvp2 daily several days back and there is problems (few actual pvp duels included - pvp2 is just easier if you keep waiting opponent while doing something else). Like yesterday, it dropped every opponent after 10-20 sec, but I was able to finish games againts AI. Played at least 10 games. So one could build decks that AI can play and in theory, both play against AI to get result for duels. Sounds awful, but maybe doable if no other choises.
Today, however, pvp games have lasted 200-300 seconds (~6 turns) and then opponent dropped again, but instead of being able to play against AI, sudden "You lost" screen appears every time. This is even worse for WAR duels, as it gives no result at all. IRC and Kong chat both stay online, so it was not network disconnection mentioned in rules, so I would not accept loss for these games. I can't finish a single game it seems - even tried with Jenkar who was able to somehow play their WAR duels.
There is no way, I'll even try to play my WAR match(es), and I doubt the situation is much better for others