QuickBooks error cannot communicate with the company file, this error happens because your network firewall is interrupting the connection. The error causes due to server configuration, using an outdated QuickBooks Desktop or firewall. You need to update QuickBooks and download QuickBooks Tools Hub then run QuickBooks file doctor https://www.askforaccounting.com/quickbooks-cannot-communicate-with-the-company-file-help-how-to-fix-it/