Login control won't login - asp.net

Question

I've been using VS 2013 and created an Asp.Net web forms application using the template with Bootstrap. I have a login control that does all of the default behaviour using AspNet tables within SQL. When I run within the IDE I have no problems in any browser logging into the site (IE, Chrome) I was manly using IE when running.
However, I have deployed the site to my local server for testing and it stops working in IE. What happens is it goes through the validation of the user name/password fine, gets to the redirect but the user is never logged in.
If I browse to the server using chrome on my pc it will work fine if I do the same within IE it won't work 95% of the time but I have managed to login occasionally. I have asked other colleague's to try, Chrome doesn't work for most of them or IE. I have also tried on my ipad chrome will work but safari won't!
So in file startup.auth.vb
Partial Public Class Startup
' For more information on configuring authentication, please visit http://go.microsoft.com/fwlink/?LinkId=301883
Public Sub ConfigureAuth(app As IAppBuilder)
'Configure the db context, user manager and signin manager to use a single instance per request
app.CreatePerOwinContext(AddressOf ApplicationDbContext.Create)
app.CreatePerOwinContext(Of ApplicationUserManager)(AddressOf ApplicationUserManager.Create)
app.CreatePerOwinContext(Of ApplicationSignInManager)(AddressOf ApplicationSignInManager.Create)
' Enable the application to use a cookie to store information for the signed in user
app.UseCookieAuthentication(New CookieAuthenticationOptions() With {
.AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
.Provider = New CookieAuthenticationProvider() With {
.OnValidateIdentity = SecurityStampValidator.OnValidateIdentity(Of ApplicationUserManager, ApplicationUser)(
validateInterval:=TimeSpan.FromMinutes(10),
regenerateIdentity:=Function(manager, user) user.GenerateUserIdentityAsync(manager))},
.LoginPath = New PathString("/Account/Login")})
' Use a cookie to temporarily store information about a user logging in with a third party login provider
app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie)
' Enables the application to temporarily store user information when they are verifying the second factor in the two-factor authentication process.
app.UseTwoFactorSignInCookie(DefaultAuthenticationTypes.TwoFactorCookie, TimeSpan.FromMinutes(5))
' Enables the application to remember the second login verification factor such as phone or email.
' Once you check this option, your second step of verification during the login process will be remembered on the device where you logged in from.
' This is similar to the RememberMe option when you log in.
app.UseTwoFactorRememberBrowserCookie(DefaultAuthenticationTypes.TwoFactorRememberBrowserCookie)
End Sub
End Class
Then on my login button
Protected Sub LogIn(sender As Object, e As EventArgs)
If IsValid Then
' Validate the user password
Dim manager = Context.GetOwinContext().GetUserManager(Of ApplicationUserManager)()
Dim signinManager = Context.GetOwinContext().GetUserManager(Of ApplicationSignInManager)()
' This doen't count login failures towards account lockout
' To enable password failures to trigger lockout, change to shouldLockout := True
Dim result = signinManager.PasswordSignIn(Email.Text, Password.Text, RememberMe.Checked, shouldLockout:=True)
Select Case result
Case SignInStatus.Success
IdentityHelper.RedirectToReturnUrl(Request.QueryString("ReturnUrl"), Response)
Exit Select
Case SignInStatus.LockedOut
Response.Redirect("/Account/Lockout")
Exit Select
Case SignInStatus.RequiresVerification
Response.Redirect(String.Format("/Account/TwoFactorAuthenticationSignIn?ReturnUrl={0}&RememberMe={1}",
Request.QueryString("ReturnUrl"),
RememberMe.Checked),
True)
Exit Select
Case Else
FailureText.Text = "Invalid login attempt"
ErrorMessage.Visible = True
Exit Select
End Select
End If
End Sub
End Class