How do I Allow QuickBooks through Windows Firewall
                     ALLOW QUICKBOOKS SERVICES 
WINDOWS FIREWALL
QuickBooks is a powerful tool and can do a lot for 
you, it has some inherent limitations. For example, 
QuickBooks services might become inaccessible if 
you are unable to enable them through the 
Windows firewall. In this article, we'll look at what 
Windows firewall is and how to configure 
Allow QuickBooks Services Windows Firewall 
services through it.
ALLOW QUICKBOOKS SERVICES 
WINDOWS FIREWALL
TO ALLOW QUICKBOOKS 
SERVICES THROUGH WINDOWS 
FIREWALL:
1. Open Windows Firewall by clicking on Start > 
Control Panel > System and Security > Windows  
Firewall.
2. In the Windows Firewall window, click on the 
Advanced tab.
3. Click on the Allow access to QuickBooks Services 
Online (QBO) through the network link check box.
4. Click on OK to save these changes and close the 
Windows Firewall window