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More detailed diagnosis and fix presumptions
Update: 4/3/2018: No reports of connection problem since last one, below. That's a good sign.
Update: 11/21/2017, ticket INC000002113738. What update happened to produce the same problem? Fixed trivially using these instructions. How often will this happen, thought?!
Update: 11/16/2017, ticket INC000002108633. Fall Creator update (1709) produced same problem. Fixed trivially using these instructions. Success!
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