#13 - June 27, 2017, 1:50 a.m.
Hey all, just wanted to let you know that we've been getting reports on this. We're aware of what's causing it and are working on a fix, although we don't have an ETA to share just yet for when it will go out.
As a side note, this should only be occurring on console for characters who rolled over from Season 10, and only prevents playing with other characters remotely. Local co-op should work, as should playing non-Season 10 characters remotely.
Hope that helps - sorry this is occurring, and thanks so much for your patience while we work to resolve this!