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I appreciate the well-meaning advice. But unless someone can look at my writeup and tell me what I'm missing, I can only repeat that I have already done what you guys keep suggesting and it didn't work. You may be right that the DOS approach will be much harder. The question for me is, where do I fi...

Thanks for the suggestions. Unfortunately, I have already tried those steps. I've blogged the effort in detail, if you would like to read up on it. Maybe you'll see something in the writeup that I have overlooked. Not sure how the URL code works in this forum, so I'll just give the link: https://ray...

There is a case to be made that I followed instructions ... just the wrong ones. Be that as it may, I now have a largely unresponsive WH16NS40, old style. I seem to be stuck with the "CheckSum is mismatched" error, that is, and no apparent way to revert from firmware version 1.05. Some sou...