Unexplained, unlogic error? VB.NET

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VB

Hello guys Im working on a game and this is the login system.
I always get the Username or password do not match for no reason.
It started today, before it worked perfectly.

I tested everything: for example textbox1 to show "encrypted" and textbox2 to show the encrypted password from the server, everything is fine the pass in the server and the client both match.

PS: Ignore the comments they are in my native language.

Private Sub loginbutton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles loginbutton.Click
        loginbutton.Image = My.Resources.largeButton_orange_down

        'Check if blank, jepi vlera variablave.
        If TextBox1.Text.Length = 0 Or TextBox2.Text.Length = 0 Then
            MsgBox("One of the fields is blank.")
            Exit Sub
        Else
            username = TextBox1.Text
            passwordclient = TextBox2.Text
        End If
        encrypted = StringToMD5(passwordclient)

        'Lidhja me serverin.
        Dim req As System.Net.WebRequest = System.Net.WebRequest.Create("http://yugiohdatabase.byethost7.com/database/" & username)
        Dim resp As System.Net.WebResponse = req.GetResponse
        Str = resp.GetResponseStream
        srRead = New System.IO.StreamReader(Str)
        'Read all the text 
        passwordserver = srRead.ReadToEnd
        System.Threading.Thread.Sleep(1000)

        'Shikon nese passwordet jane te njejte.
        If passwordserver = encrypted Then
            Form2.Show()
            Me.Hide()
        Else
            MsgBox("Password or Username do not match, please retry.", MsgBoxStyle.OkOnly, "Login failed")
        End If