I'm stuck between chapters 3 and 4 and can't continue at all, hit "Play" and keeps telling me I have a follower that is unavailable at this time and can't get anywhere. Mission mentions HK 55 but he is nowhere on my companion list

Here I am playing along, leveling my juggernaut when out of nowhere sever lag goes to over 30k and kicks me off line, I then cannot get on for over 30 minutes, no just the laptop but the desktop as well, Finally get back in, able to play awhile then happens again, and once again I cannot get online from either laptop or deskrop, I have reset modem, router, reinstalled game on laptop and still dealing with this crap. Wish they'd get there **** together, I'm starting to get sick of paying 15 bucks a month for stuff that doesn't work.

Kicked out as well and cannot reconnect

So much for finishing the HM Raid I was in