[cglrcng]

When you next get to unbag that comp bot....Look at the Radio Power Converter (there are 4 wires....1 yellow, 2 black center ground wires, and 1 red).

Are the 2 center grounds possibly crossed over? The black nearest the red wire should be paired w/ the red. The black nearest the yellow wire should be paired w/ the yellow.....And the yellow should be connected to the radio power + side (black w/ white stripe wire to the radio).

We had no problems whatsoever w/ that exact type of rebooting issue (you seem to be alluding to), w/ our competition bot, then we put that bot into the bag happy as can be after much practice on the 18th of Feb....That 1 was wired correctly.

Started working w/ our practice bot later, since we had been waiting for a ball P.U. gearbox to arrive, and lo and behold after that was in and running right, we had the same exact "once in a while connection loss issue" that you speak of when testing the practice bot"....Shoot, dry shoot, load a ball (no problems, except a very intermittent loss of connection that got worse, not better). We zip tied the radio power connector, changed radios, checked for a frame grounding issue, we thought we did everything....Then, we noticed a real error in wiring (one of the students wired the radio power converter incorrectly, as the 2 center grounds were crossed over).

When we removed the power converter (holding it w/ wires away from you, wires top, from the left), the order should have been yellow /black-black /red...(Make sure they are paired just like that).

Wired correctly now (;-0), we have never lost connection again no matter what we hit, or do, after many rough hours of practice. (It was simply the 2 blacks crossed over...The black nearest the red was w/ the yellow...and the black nearest the yellow was w/ the red. Those 2 grounds are not created equal by any means on that power converter). Wasn't easy to notice as that converter was in a spot way down under and very hard to see unless you were looking very closely.

The power connector to the d-Link radios are also very famous for intermittent loose connections and subject to wiggling in the socket easily...tape it, zip tie it, etc. (but of course, you cannot solder it...You need to get that radio configured at the events at the kiosk, as you do already know).

Please post back if you find that is the problem please (It may not be, but ours was...and both act the same). And GOOD LUCK in tracking down an electrical gremlin, as they are not always easy.

Edited: BTW, that practice bot electrical board was the 1st 1 wired...(It was the practice board of course).