Unable to complete network request to host "localhost".

I have a user of my program (that uses Firebird) who is getting the above error when starting my program.  She tells me that she has two instances of SQL Server running.  Do they "play nice" together?
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Nick UpsonConnect With a Mentor Principal Operations EngineerCommented:
sql server and firebird are fine, I'd check network related items like firewall settings
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