I get this exeption when i try making a webrequest oner https

"Could not create SSL/TLS secure channel"

Dim SMSMMESSAGE As String = "Hell Try"
request = HttpWebRequest.Create("https://apps.mnotify.net/smsapi?key=myapi&to=mytel&msg=Hello&sender_id=TRY")
request.Timeout = 10000
response = request.GetResponse()
reader = New StreamReader(response.GetResponseStream())
data = reader.ReadToEnd()