When trying to connect to SharePoint, Sharegate displays the following error:
|Any error code ending with: -156|
This error occurs when the SharePoint server at the specified address cannot be found, because the DNS lookup failed. This generally happens because of a network issue, or because the address was entered incorrectly.
If you can connect to your SharePoint site in your browser, make sure to copy/paste the address from there to prevent any mistake.
If you cannot connect to your SharePoint site in your browser or in Sharegate, contact your network administrator.