SAP Crystal Reports 2016 not disconnecting from SQL Server 2012

Greetings

I have inherited some code from a colleague and I noticed that the SAP Crystal Reports are not disconnecting from the SQL Server. The application does close and dispose of the crystal viewer instance. I have posted the code here:

Private Sub CloseCrystalReports()
        If CRReports.crRpt IsNot Nothing Then
            CloseReports(CRReports.crRpt)
            CRReports.crRpt.Close()
            CRReports.crRpt.Dispose()
            CRReports.crRpt = Nothing
        End If
        GC.Collect()
        GC.WaitForPendingFinalizers()
        GC.Collect()
    End Sub

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I my attempts to resolved the issue, I also added this:

Protected Sub Page_Unload(ByVal sender As Object, ByVal e As EventArgs)
        If CRReports.crRpt IsNot Nothing Then
            CloseReports(CRReports.crRpt)
            CRReports.crRpt.Close()
            CRReports.crRpt.Dispose()
            CRReports.crRpt = Nothing
        End If
        GC.Collect()
        GC.WaitForPendingFinalizers()
        GC.Collect()
    End Sub

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I also found that the issue may be with SQL Server and Connection Pooling, so I added this to the connection string:

Pooling=False

I do not see an increase in memory usage on the application server. But I do see that the connections to the database on the database server does not decrease after the application is closed.

Does anyone have any other suggestions?