If it was just a one-time thing, then I'm going to chalk it up to being network issues with our AV service, which can happen every now and then. There really isn't much we can do about it either, except hope that is doesn't happen very often and suggest any number of other options to fall back on when it does happen: Hangouts, Appear.in, or Skype for video; or just audio through, Discord(my personal favorite), Mumble, or Team Speak