Android Question jRDC2 query responseError

Sub Process_Globals
    Type DBResult(Tag As Object, Columns As Map , Rows As List)
    Type DBCommand(Name As String , Parameters() As Object)
    Private const rdcLinc As String = "http://192.168.0.5:17178/rdc"
End Sub

Sub CreateRequest As DBRequestManager
    Dim req As DBRequestManager
    req.Initialize(Me,rdcLinc)
    Return req
End Sub

Sub CreateCommand(Name As String , Parameters() As Object ) As DBCommand
    Dim cmd As DBCommand
    cmd.Initialize
    cmd.Name = Name
    If Parameters <> Null Then cmd.Parameters = Parameters
    Return cmd
End Sub

Sub Activity_Create(FirstTime As Boolean)
    GetRecord(2)
End Sub

Sub GetRecord(id As Int)
    Dim req As DBRequestManager = CreateRequest
    Dim cmd As DBCommand = CreateCommand("select_employees",Array(id))
    wait for (req.ExecuteQuery(cmd,0,Null)) jobdone(j As HttpJob)
    If j.Success Then
        req.HandleJobAsync(j,"req")
        Wait For (req) req_result(res As DBResult)
        req.PrintTable(res)
    Else
        Log("error : " & j.ErrorMessage)
    End If
End Sub

ResponseError.Reason: java.net.SocketTimeoutException: failed to connect to /192.168.0.5 (port 17178) after 30000ms, Response:error: java.net.SocketTimeoutException: failed to connect to /192.168.0.5 (port 17178) after 30000ms