named pipes provider could not open a connection to sql server [53]

Discussion of open issues, suggestions and bugs regarding UniDAC (Universal Data Access Components) for Delphi, C++Builder, Lazarus (and FPC)
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jrheisler
Posts: 48
Joined: Tue 25 Oct 2011 17:47

named pipes provider could not open a connection to sql server [53]

Post by jrheisler » Wed 16 Sep 2015 15:40

I have a customer running a Delphi 7 app with Unidac 6.2.7 on a new Windows 8.x machine. When he goes to log into the sql server database he gets this error:

Named Pipes Provider Could not open a connection to SQL Server [53]

What is missing?
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azyk
Devart Team
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Joined: Fri 11 Apr 2014 11:47
Location: Alpha Centauri A

Re: named pipes provider could not open a connection to sql server [53]

Post by azyk » Thu 17 Sep 2015 11:31

This error message can occur if the host or the port you are using for connection to SQL Server don't exist or are unavailable. To solve the problem, try using the advices from an MSDN article: http://social.technet.microsoft.com/wik ... ngine.aspx .
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