Connection timeouts

The Dropbox API does not block IP addresses or timeout requests intentionally. If/when the Dropbox API rejects a request, Dropbox will return an explicit error response.

I'm also not clear on what you mean when you say the request timed out, but you received a 499 status code. The status code would be in the response, but the error you included seems to show the connection failed so there wouldn't be an actual response from the server to contain a status code, and the output you shared doesn't show "499".

It looks like you may have truncated the error output though. Is there more to the error that you can share?

In any case, is there anything on your network connection, such as proxy, firewall, etc., that may be interfering with your connection to api.dropboxapi.com?

Thank you for reply
Sorry for disinformation, I got 499 code in my hosting logs, probably this is not related to the problem

Hosting support sent me ping info and claims IPs are probably blocked

What should I do?

The Dropbox API does not block IP addresses, so this is likely a networking issue. Were you able to check if there's any proxy, firewall, etc. that may be interfering? 

The problem disapeared. Thank you for your consultation