ROOT CAUSE-When Quickbooks says not able to establish the internet connection
This could be a problem with your internet connection.
Check your internet connection.
Another reason could be the firewall on the computer.
How to fix it:
Check mode our router if the internet is working.
Contact you ISP if it is not working.
If it working then Disconnect and reconnect and wait for 15 to 20 minutes
If still it doesn’t work contact at 1800 470 6903