My dropbox is not syncing on laptop

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Issue abstract: Dropbox isn’t syncing on my laptop and I am also not able to update to the newer version of dropbox.
Detailed description:

Product & version number:

OS details:

What is the error message you are seeing?

If you have any supporting screenshots, please add them:

@David_Vogt How is this related to Norton? Does Norton have a notification appear stating its blocking this, does Norton firewall history have entries where this is being blocked by Norton?

SA