Tuesday, Septem2:01:12 PM - Emmanuel Ikonne (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2) For help, click: - The system cannot find the file specified - BUTTONS: OK. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. The server was not found or was not accessible.
ADDITIONAL INFORMATION: A network-related or instance-specific error occurred while establishing a connection to SQL Server. Please help on it.Ĭonnect to Server - Cannot connect to DESKTOP-JQ2TJQV. Monday, Novem7:54:13 AM - Vanitha Sundaram Within the SQL Configuration Manager under the SQL Native Client > Aliases section for both native client sections add the alias name the same as the hostname along with the unique port number. When the browser service is turned off and you have a unique port number for the SQL Server, consider that you require an alias name when trying to connect to the hostname only in SSMS. Tuesday, Febru9:40:00 PM - Glenn Orlando Pringle I have the same error- Error: 40- could not open a connection to SQL Server - in Visual Studio 2019 Sorry but that didnt help me, in my windows the SQL SERVER looks different. Never thought about it until this article, thanks again!! thank you so much! i was going crazy and it was the sql server had the firewall on and didn't allow any connections to it. In fact : 1 problem isnt solved in your tutorial, it's the missing package from NuGet for Universal Windows Applications :)Įven adding external references from MySql DLLs don't work, for UWP, go to NuGet package management (or manually in windows selection in VS) and add MySql.Data (or any other package who manage MySql). It may be SynAttack protection that strikes.So, i had troubles since 2 days but everything was nice, i didnt found problem until.
The request does include a rather long SQL string sending an PDFĭocument as varbyte (or whatever it is) that is saved as a FILESTREAM. None of the applications are connecting/reconnection.Įach is using a dedicated SQLClient connection to a SQLServer 2008 Only one of the nine processes willīe affected. (provider: TCP Provider, error: 0 - An existing connectionĪnd then posting returns to normal. In the middle of allĪ transport-level error has occurred when sending the request to the Processes running on three different computers. I have an application that will happily post 20TPS from 9 different
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