Mass Effect 3 Multiplayer will not connect

Mass Effect 3 multiplayer on xbox 360 and PC are not working. I've deleted, reinstalled, updated, signed out and in, restarted, everything. For PC ME3 on the EA application says Online Pass required. I click on online pass and it just tells me again online pass required. And none of the DLC I've purchased is available either. I went to EA support and they just told me to post on the forums... Absolutely crazy. Apparently tons of people can still play but for some reason I cannot. Please help.