I'm a long way off getting the knack, but I don't give up very readily, and I'll get there eventually.
If you get short period wifi dropouts, dont stop pedalling if you're in a group . In fact pedal harder because whilst you've lost connection, the draft benefit is not there. If the dropouts last 10-20secs, when the PC re establish connection you could well be near your group and continue the race. This happened on the race I did mid xmas. The kids were downloading film/gaming and i got a dropped link for two short period, the first time i reappeared 5 metres off the back of my group the second occasion i actually outpaced the group. I then finished the race with my group