WebDav uploads fail after upgrade

No changes to my WebDav server, after upgrading to latest 8.0.1 version I am getting the below error:

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Your WebDAV server returned an HTTP 0 error for a PUT request.

If you receive this message repeatedly, check your WebDAV server settings or contact your WebDAV server administrator.

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Credentials verify fine in settings, and uploads work fine via other WebDav clients.
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