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Reply to "Timy and USB"

With a little bit more time to reflect, here are some further observations. There are still too many variables, but it suggests some paths forward.
1) I decided to abandon System A and run all on System B, so I switched the announcing monitor (old-school CRT display) to the System B and then I started to have problems on System B, but no problems on System A. However, I cannot say with certainty that the switch in dropped connections exactly corresponded to switching the external monitor.
2) Given the uncertainty of the times we were announcing, I told the announcer to stop. So, the amplifier was no longer being used.
3) I don't recall if the monitor was disconnected. I don't recall if the amplifier was turned off.

Shortly after things got really bad, the problem "resolved" and both systems worked without issue for the remaining 40 minutes of the race. But, they have run for 40 minute blocks without issue before. My gut says that it has something to do with the external monitor and the amplifier.

-DI
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