iMessage trouble logging in MacBook Pro
I just got a new MacBook Pro and iMessages was working fine for a few days. I could not get FaceTime to work though and, in trying to fix it, I think I changed something in my settings for iMessage because now I can't get logged in. I have tried signing out and signing in again with my AppleID but it remains offline. My iPhone messages are still working fine (thankfully). Please help me figure out what I must have done!
MacBook Pro with Retina display, OS X Yosemite (10.10.4)