Why did uploading from 1s stop working after transferring to VDS?

Question

1C-Bitrix

Hello. We dragged the site to VDS and uploading from 1s stopped working.

Here is what he writes in response.

12/27/2020 12:02:06 PM - Failed to get data from the server. Check that the server address, port, username and password,
and Internet connection settings are correct.

12/27/2020 12:02:06 AM--Authorization failed.
Failed to establish a connection to the server. Check the username and password.

Login and password are correct. Website address too

Answer 1

Most likely, on the computer where 1C is located, DNS is cached and the domain still points to the old IP, and there is no longer a site there, as I understand it.
You always need to check the availability of the site from where the client who cannot connect is actually located - there may be a DNS cache, there may be no route.