MAC Adress: 'F0FE6B297BE8
Mqtt broker 'a1optpg91s0ydf-2.iot.eu-west-1.amazonaws.com'
uPLibrary.Networking.M2Mqtt.Exceptions.MqttConnectionException: Exception connecting to the broker ---> System.IO.IOException: The authentication or decryption has failed. ---> System.IO.IOException: The authentication or decryption has failed. ---> Mono.Security.Protocol.Tls.TlsException: The authentication or decryption has failed.
  at Mono.Security.Protocol.Tls.RecordProtocol.EndReceiveRecord (IAsyncResult asyncResult) <0x4081b6c0 + 0x00107> in <filename unknown>:0
  at Mono.Security.Protocol.Tls.SslClientStream.SafeEndReceiveRecord (IAsyncResult ar, Boolean ignoreEmpty) <0x4081b600 + 0x0002b> in <filename unknown>:0
  at Mono.Security.Protocol.Tls.SslClientStream.NegotiateAsyncWorker (IAsyncResult result) <0x40818450 + 0x00213> in <filename unknown>:0
  --- End of inner exception stack trace ---
  at Mono.Security.Protocol.Tls.SslClientStream.EndNegotiateHandshake (IAsyncResult result) <0x4081c180 + 0x000bf> in <filename unknown>:0
  at Mono.Security.Protocol.Tls.SslStreamBase.AsyncHandshakeCallback (IAsyncResult asyncResult) <0x4081bf20 + 0x0007f> in <filename unknown>:0
  --- End of inner exception stack trace ---
  at Mono.Security.Protocol.Tls.SslStreamBase.EndRead (IAsyncResult asyncResult) <0x40816920 + 0x00153> in <filename unknown>:0
  at System.Net.Security.SslStream.EndAuthenticateAsClient (IAsyncResult asyncResult) <0x40816730 + 0x0003e> in <filename unknown>:0
  at System.Net.Security.SslStream.AuthenticateAsClient (System.String targetHost, System.Security.Cryptography.X509Certificates.X509CertificateCollection clientCertificates, SslProtocols enabledSslProtocols, Boolean checkCertificateRevocation) <0x40810790 + 0x00055> in <filename unknown>:0
  at uPLibrary.Networking.M2Mqtt.MqttNetworkChannel.Connect () <0x4080fd00 + 0x002b2> in <filename unknown>:0
  at uPLibrary.Networking.M2Mqtt.MqttClient.Connect (System.String clientId, System.String username, System.String password, Boolean willRetain, Byte willQosLevel, Boolean willFlag, System.String willTopic, System.String willMessage, Boolean cleanSession, UInt16 keepAlivePeriod) <0x4080f500 + 0x000f1> in <filename unknown>:0
  --- End of inner exception stack trace ---
  at uPLibrary.Networking.M2Mqtt.MqttClient.Connect (System.String clientId, System.String username, System.String password, Boolean willRetain, Byte willQosLevel, Boolean willFlag, System.String willTopic, System.String willMessage, Boolean cleanSession, UInt16 keepAlivePeriod) <0x4080f500 + 0x00167> in <filename unknown>:0
  at uPLibrary.Networking.M2Mqtt.MqttClient.Connect (System.String clientId) <0x4080f470 + 0x00053> in <filename unknown>:0
  at SharedLib.LsClient.Start (System.String broker, System.String uuid, System.String mac) <0x40808a00 + 0x00527> in <filename unknown>:0
CA certificate downloaded
CA certificate done
Guest token 'qiJNz3waS4I99FPvTaPt2C2R46WXYdhw'
System.Net.WebException: Error: SendFailure (Error writing headers) ---> System.Net.WebException: Error writing headers ---> System.IO.IOException: The authentication or decryption has failed. ---> Mono.Security.Protocol.Tls.TlsException: The authentication or decryption has failed.
  at Mono.Security.Protocol.Tls.RecordProtocol.EndReceiveRecord (IAsyncResult asyncResult) <0x4081b6c0 + 0x00107> in <filename unknown>:0
  at Mono.Security.Protocol.Tls.SslClientStream.SafeEndReceiveRecord (IAsyncResult ar, Boolean ignoreEmpty) <0x4081b600 + 0x0002b> in <filename unknown>:0
  at Mono.Security.Protocol.Tls.SslClientStream.NegotiateAsyncWorker (IAsyncResult result) <0x40818450 + 0x00213> in <filename unknown>:0
  --- End of inner exception stack trace ---
  at System.Net.WebConnection.EndWrite (System.Net.HttpWebRequest request, Boolean throwOnError, IAsyncResult result) <0x4089fde0 + 0x00207> in <filename unknown>:0
  at System.Net.WebConnectionStream+<SetHeadersAsync>c__AnonStorey1.<>m__0 (IAsyncResult r) <0x4089f6e0 + 0x0013b> in <filename unknown>:0
  --- End of inner exception stack trace ---
  --- End of inner exception stack trace ---
  at System.Net.WebClient.UploadValues (System.Uri address, System.String method, System.Collections.Specialized.NameValueCollection data) <0x408a9780 + 0x00403> in <filename unknown>:0
  at System.Net.WebClient.UploadValues (System.String address, System.Collections.Specialized.NameValueCollection data) <0x408a96f0 + 0x0003f> in <filename unknown>:0
  at (wrapper remoting-invoke-with-check) System.Net.WebClient:UploadValues (string,System.Collections.Specialized.NameValueCollection)
  at SharedLib.LsClient.Init (System.String mail, System.String pass, System.String uuid) <0x4086a5e0 + 0x0037f> in <filename unknown>:0