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Error: cannot communicate with the company file due to firewall

When opening a company file, you see the following error:

Cannot communicate with the company file due to firewall.

Why this is happening

This can be caused by any of the following:

  • A firewall is installed on the network.
  • The connection to the server has been lost or is not set up properly.
  • The QuickBooks Data Base Server Manager is not running on the server.
How to fix it
 
KB ID# SLN55083
12/3/2016 3:33:32 AM
PPRDQSSWS407 9138 Pro 2017 d74dc0