Procedo con il secondo form, Connect.vb
codice:
Imports WindowsApplication14.Connection

Public Class Form2
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents GroupBox1 As System.Windows.Forms.GroupBox
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents txtPort As System.Windows.Forms.TextBox
    Friend WithEvents txtHost As System.Windows.Forms.TextBox
    Friend WithEvents Button3 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(Form2))
        Me.GroupBox1 = New System.Windows.Forms.GroupBox()
        Me.Button3 = New System.Windows.Forms.Button()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.Label3 = New System.Windows.Forms.Label()
        Me.Label2 = New System.Windows.Forms.Label()
        Me.txtPort = New System.Windows.Forms.TextBox()
        Me.txtHost = New System.Windows.Forms.TextBox()
        Me.GroupBox1.SuspendLayout()
        Me.SuspendLayout()
        '
        'GroupBox1
        '
        Me.GroupBox1.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button3, Me.Button1, Me.Label3, Me.Label2, Me.txtPort, Me.txtHost})
        Me.GroupBox1.Location = New System.Drawing.Point(8, 8)
        Me.GroupBox1.Name = "GroupBox1"
        Me.GroupBox1.Size = New System.Drawing.Size(296, 152)
        Me.GroupBox1.TabIndex = 0
        Me.GroupBox1.TabStop = False
        Me.GroupBox1.Text = "GroupBox1"
        '
        'Button3
        '
        Me.Button3.BackColor = System.Drawing.SystemColors.GrayText
        Me.Button3.ForeColor = System.Drawing.Color.Black
        Me.Button3.Image = CType(resources.GetObject("Button3.Image"), System.Drawing.Bitmap)
        Me.Button3.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft
        Me.Button3.Location = New System.Drawing.Point(192, 104)
        Me.Button3.Name = "Button3"
        Me.Button3.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Button3.Size = New System.Drawing.Size(80, 25)
        Me.Button3.TabIndex = 12
        Me.Button3.Text = "Annulla"
        Me.Button3.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'Button1
        '
        Me.Button1.BackColor = System.Drawing.SystemColors.GrayText
        Me.Button1.ForeColor = System.Drawing.Color.Black
        Me.Button1.Image = CType(resources.GetObject("Button1.Image"), System.Drawing.Bitmap)
        Me.Button1.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft
        Me.Button1.Location = New System.Drawing.Point(32, 104)
        Me.Button1.Name = "Button1"
        Me.Button1.RightToLeft = System.Windows.Forms.RightToLeft.No
        Me.Button1.Size = New System.Drawing.Size(104, 25)
        Me.Button1.TabIndex = 10
        Me.Button1.Text = "Try Connect"
        Me.Button1.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(16, 64)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(74, 15)
        Me.Label3.TabIndex = 9
        Me.Label3.Text = "Port"
        Me.Label3.TextAlign = System.Drawing.ContentAlignment.MiddleLeft
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(16, 32)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(74, 15)
        Me.Label2.TabIndex = 8
        Me.Label2.Text = "IP Address"
        '
        'txtPort
        '
        Me.txtPort.Location = New System.Drawing.Point(112, 64)
        Me.txtPort.Name = "txtPort"
        Me.txtPort.Size = New System.Drawing.Size(78, 20)
        Me.txtPort.TabIndex = 7
        Me.txtPort.Text = "80"
        '
        'txtHost
        '
        Me.txtHost.Location = New System.Drawing.Point(112, 32)
        Me.txtHost.Name = "txtHost"
        Me.txtHost.Size = New System.Drawing.Size(142, 20)
        Me.txtHost.TabIndex = 6
        Me.txtHost.Text = ""
        '
        'Form2
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.BackColor = System.Drawing.Color.Black
        Me.ClientSize = New System.Drawing.Size(312, 174)
        Me.ControlBox = False
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.GroupBox1})
        Me.ForeColor = System.Drawing.Color.Gold
        Me.Name = "Form2"
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "HS Connection"
        Me.GroupBox1.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Me.Close()
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Connection.Connection = True
        Me.Close()
    End Sub

    Private Sub txtHost_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtHost.TextChanged
        Connection.HostAddress = txtHost.Text
    End Sub

    Private Sub txtPort_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtPort.TextChanged
        Connection.ConnectPort = txtPort.Text
    End Sub
End Class
E infine il modulo Connection.vb
codice:
Module Connection
    Public Connection As Boolean = True
    Public HostAddress As String = "0.0.0.0"
    Public ConnectPort As String = "80"
End Module
Però quando si avvia clicco sul pulsante conetti, inserisco i parametri e non si connette, cambiando poi manualmente la variabile booleana, si avvia già connesso, ma non si disconnette!

Perchè mi fa questo??