quickbooks issue

When one user is already logged in and another user attempts to login, the second user receives a error message:  

It appears that the Quickbooks software on the xxx-PC is setup to allow shared access to the company file, but the Quickbooks software on your computer is unable to communicate with it.

The communication problem could be due to a firewall issue, If a firewall is installed on your network, you may need to reconfigure the firewall software.  

The first user logs in as multi-user and so does the 2nd user, but when the second user logs in, it goes into Single user mode.
vulture714Asked:
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JohnBusiness Consultant (Owner)Commented:
Where is the Company ledger file (.QBW file)? Is it on a server? or is it on a local company?  There are different ways for sharing the file for multi-user use.  .... Thinkpads_User

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JohnBusiness Consultant (Owner)Commented:
Thank you. I hope it is all working for you now. ... Thinkpads_User
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