[Firebird-net-provider] [FB-Tracker] Created: (DNET-1035) Unable to connect to Server, with real help from error message

[Poul L. C. (JIRA) <tr...@fi...>]

Unable to connect to Server, with real help from error message
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                 Key: DNET-1035
                 URL: http://tracker.firebirdsql.org/browse/DNET-1035
             Project: .NET Data provider
          Issue Type: Bug
          Components: ADO.NET Provider
    Affects Versions: 7.10.1.0, 7.10.0.0, 7.5.0.0
         Environment: OS: Windows Server 2019 Standard
Firewall: Disabled
Internet connection / DNS Working: Yes
            Reporter: Poul Lindholm Christiansen
            Assignee: Jiri Cincura


Hi

I have downloaded Firebird 3.0.7 and installed the server.
Easy - peasy.

I did this because, i want to evaluate using firebird for an application that I'm staring out on just now. It's not going so well :-(

I have then started Visual Studio 2019 on the same computer as the server is installed.

I have this code:
                FbConnectionStringBuilder connStr = new FbConnectionStringBuilder();
                connStr.UserID = "SYSDBA";
                connStr.Password = "masterkey";
                connStr.Port = 3050;
                connStr.DataSource = "127.0.0.1";
                connStr.Database = @"test.db";
                connStr.Dialect = 3;
                connStr.Charset = "UTF8";
                connStr.ServerType = FbServerType.Default;
                connStr.Pooling = true;
                connStr.MinPoolSize = 15;
                connStr.MaxPoolSize = 30;
                connStr.PacketSize = 8192;
                connStr.WireCrypt = FbWireCrypt.Required;

                FbConnection.CreateDatabase(connStr.ConnectionString, false);

Whicc I was expecting to create a Database on the server.
I have tried everything (it feels like that at least) in the "DataSource" ("127.0.0.1", "localhost", "::1", "DEV3" etc) and "Database" ("inet://127.0.0.1:3050/test.db", "DEV3:test.db" ......) properties.
Regardless of these settings ige et this error:

FirebirdSql.Data.FirebirdClient.FbException
Unable to complete network request to host "
No message for error code 335544721 found.

Sometimes the host '' from the message is replaced by the actual hostname, but the error remains the same.

I have run netstat -a to verify that firebird.exe is running and listening to requests on port 3050.
If I change the WireCrypt - then I get error messages related to this, so that works.

When I do a search online - i get posts that are 5-6 years old and only talking about disabling the firewall.

Since the error message does not contain any helpfull information about the issue at hand - I'm at a loss and a little afraid about using Firebird in an application that I need to support going forward.

I do not know what to do and how to trouble-shoot.

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