I checked my Apple TV. My serial number was almost a match. It ended in the required DRHN. But it did not have one of the required third and fourth character pairs (instead, the matching pair was with the fifth and sixth characters). I assume that means close, but no cigar. Then again, my problem was with an Ethernet connection, not Wi-Fi.
Unfortunately, several questions remain unanswered. Do the Wi-Fi and Ethernet symptoms have the same underlying cause? For cases that do not qualify for a unit replacement, did a firmware update trigger the problem? If not, what is the sure-fire permanent solution? Hopefully, the answers will emerge sometime soon.
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