Quote:
Originally Posted by waialua359
In Hawaii today, I can note at least 20 robots that had the lag issues today...For us personally, we swapped out our 1.4 firmware router with our backup that was downgraded to a lower firmware.
We had absolutely no issues after that.
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There is now a lot of evidence, but still no good theory about what's going on. The virtual networks on the field should be isolating robots from each other, but something obviously isn't right. I don't think it can be called a "field fault" for which replaying a match would be appropriate, as it's being caused by a specific robot and would very likely happen again anyway (I heard that it indeed occurred for multiple replays at another event this weekend).
From what we saw at the Hawaii Regional, it's apparent that D-Link firmware 1.4 is a factor. Every match that had obvious multiple-robot control lag included a robot bearing that revision. It's not completely clear, since not every match with a 1.4-bearing robot had a problem. But we have something to work with, and we can try to prevent it from happening again by downgrading to revision 1.21 when necessary.