Hello Ryan, I have been having similar issues and I think its due to static noise from either Vacuum or Spindle for me. I runnin gtest now to also troubleshoot. I am running it dry with no material in air with spindle off and vacuum off to see if the same program that did not complete now complete without extras turned on. If it does now complete Im going to try other methods to reduce the static noise.
Check my forum to see if any tips people mentioned to me might help you. I hope we can figure this out because i hate wasting time and material on random losses of connection. let me know if you figure your problem out.