SNMP GET ничего не возвращает - Visual Basic .NET

 Sub Main()
        Dim host As String = "192.168.7.77"
        Dim community As String = "private"
        Dim requestOid() As String
        Dim result As Dictionary(Of Oid, AsnType)
        requestOid = New String() {"1.3.6.1.4.1.9986.3.13.1.2.4.1.1.14"}
        Dim snmp As SimpleSnmp = New SimpleSnmp(host, community)
        If Not snmp.Valid Then
            Console.WriteLine("Invalid hostname/community.")
            Console.ReadLine()
            Exit Sub
        End If
        result = snmp.Get(SnmpVersion.Ver2, requestOid)
        If result IsNot Nothing Then
            Dim kvp As KeyValuePair(Of Oid, AsnType)
            For Each kvp In result
                Console.WriteLine("{0}: ({1}) {2}", kvp.Key.ToString(), _
                                  SnmpConstants.GetTypeName(kvp.Value.Type), _
                                  kvp.Value.ToString())
                Console.ReadLine()
            Next
        Else
            Console.WriteLine("No results received.")
            Console.ReadLine()
        End If
    End Sub