I should give more info. I am running 2 hubs each on left and right of house, from hub 1 I am sending both PN and DMX from left to right side. It is kinda weird but I am running the same dmx channels left and right.
The sync was the first thing that came to my head too, but no clue how to test. Not sure it matters but my conductor's clock only stays synced to my pc for a few seconds. Conductor clock is always slow. This is my 2nd RTC too.