"Lost connection to the session"

In my opionion, this might not be a game issue, but a driver or network issue.  (PC) Have you ensured all hardware drivers are up to date, including the network and sound drivers.  They have been known to cause multi-player issues, especially when single player plays without a hitch. 

Also, depending on your router, check its setting, However, if this is the only game you are having the issue with, I doubt it is the router. 

V/R Falkon

Game on!

Please let me know if feedback helped via the problem solved or XP buttons!!

Thanks for your reply, Fawlkon.

My drivers are up to date and Dragon Age is the only Game in which I have these troubles. =(

Some public multiplayer games i can join, some i cannot (lost connection to the session).  My friend has the same issue here.

Private games with said friend are sadly not possible. Wether i try to invite him or he invites me, we get stuck in the "lost connection...." loop.

We tried it with disabling firewall, open all ports manually and even bypass all ports. Sadly nothing of this helped in any way.

I'm in the same boat.  About every fifth or so game I MIGHT be able to stay in, however even that isn't guarenteed.  Also tried playing with friends last night, when one of them was host, I got stuck in an infinite loop, however when we switched to teh other one being host I got in first try.  This really makes no sense to me, however I'm not a tech person, but more of a "if it works, great" type of person.  MP on any other game works fine for me too.

don't let this thread die. /bump

we require help, ea / bioware. :<

This was/is a very common problem with ME3 multiplayer as well.  General consensus there was that the problem was on EA's end.  Since on the player's side the similarities between the two MP modes are glaringly obvious, and the companies involved are the same, it seems entirely possible that it's just their crappy setup.

If it's any comfort, ME3 did improve somewhat over time, so DA:I may as well.

Bump this.

Do officials even post here?

I'm having the same problem, I have yet to be able to play a single multiplayer match.

All but one time I've gotten the "You have lost your connection to the session" error.

... And the one time I didn't get the error, the host kicked me from the game.

Bump