If Windows Firewall is Blocking QuickBooks, it can stop file sharing, multi-user mode, or even launching the software. Common reasons include:

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  Blocked QuickBooks ports

  
  


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  Missing firewall exceptions

  
  


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  Conflicting security settings

  
  

To resolve this, manually add QuickBooks to your firewall’s allowed list or use the QuickBooks Tool Hub for automated fixes. Still stuck? Don’t let downtime cost your business.

Call +1-866-500-0076 for expert help in fixing firewall-related QuickBooks errors quickly and safely!

Read More: https://medium.com/@henrymaartin1990/understanding-quickbooks-error-3371-status-code-11118-how-to-settle-it-97f749f0f788