I had the same problem on my first show. I am not sure how far away your router was or the traffic or objects between your mix location and router. I set my router up to only use 5Ghz and my router was 40ft away from me. However there was a lot of people between the router and I. The problem I was having is that 5Ghz does not travel well thru objects where as 2.4Ghz does. On break I lodged into my router settings and change to 2.4Ghz only and the glitchy editor started working correctly with no freezing.
