I think I have figured out the root cause of this. My hosting provider makes using self-signed certs tricky (and charges a lot for their own). I have to; - upload priv as normal, - upload only the single cert, not the fullchain.pem, - in a separate section upload the cross-signed intermediate Let's Encrypt cert.
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Date: 2021-01-09 11:57 am (UTC)- upload priv as normal,
- upload only the single cert, not the fullchain.pem,
- in a separate section upload the cross-signed intermediate Let's Encrypt cert.