Hey Brad. Had the Keyth guy over to upgrade the firmware and they confirmed both are running the latest (versions mentioned above).
We also spoke with Shawn. He suggested next time it freaks out (has happened twice now) to try resetting only the ethernet interface to see if that hints at which firmware might be having issue.
In the meantime do you have any thoughts about the shorter response/checksum issue/null characters I was able to figure out so far?
is clearly not 214 characters long (0xD6 in decimal)