Unable to process remote identity; unknown identity type: 'HTTP/1.1'

Am getting this error when trying to check the health of my first tentacle:

2016-11-25 09:31:50.6801 89 INFO https://web-server/ 89 Retry attempt 4
2016-11-25 09:31:50.6801 89 INFO https://web-server/ 89 Opening a new connection
2016-11-25 09:31:50.6801 89 INFO https://web-server/ 89 Performing TLS handshake
2016-11-25 09:31:50.6940 89 INFO https://web-server/ 89 Secure connection established. Server at [::ffff:192.168.2.4]:443 identified by thumbprint: 119F8777393D9C3577E6E2A7BBC5715D71ABC0E0, using protocol Tls12
2016-11-25 09:31:50.6940 89 INFO https://web-server/ 89 Unable to process remote identity; unknown identity type: 'HTTP/1.1’
Halibut.Transport.Protocol.ConnectionInitializationFailedException: Unable to process remote identity; unknown identity type: ‘HTTP/1.1’ —> Halibut.Transport.Protocol.ProtocolException: Unable to process remote identity; unknown identity type: 'HTTP/1.1’
at Halibut.Transport.Protocol.MessageExchangeStream.ParseIdentityType(String identityType)
at Halibut.Transport.Protocol.MessageExchangeStream.ReadRemoteIdentity()
at Halibut.Transport.Protocol.MessageExchangeStream.ExpectServerIdentity()
at Halibut.Transport.Protocol.MessageExchangeProtocol.PrepareExchangeAsClient()
— End of inner exception stack trace —
at Halibut.Transport.Protocol.MessageExchangeProtocol.PrepareExchangeAsClient()
at Halibut.Transport.Protocol.MessageExchangeProtocol.ExchangeAsClient(RequestMessage request)
at Halibut.HalibutRuntime.<>c__DisplayClass25_0.b__0(MessageExchangeProtocol protocol)
at Halibut.Transport.SecureClient.ExecuteTransaction(Action1 protocolHandler) Halibut.Transport.Protocol.ConnectionInitializationFailedException: Unable to process remote identity; unknown identity type: 'HTTP/1.1' ---> Halibut.Transport.Protocol.ProtocolException: Unable to process remote identity; unknown identity type: 'HTTP/1.1' at Halibut.Transport.Protocol.MessageExchangeStream.ParseIdentityType(String identityType) at Halibut.Transport.Protocol.MessageExchangeStream.ReadRemoteIdentity() at Halibut.Transport.Protocol.MessageExchangeStream.ExpectServerIdentity() at Halibut.Transport.Protocol.MessageExchangeProtocol.PrepareExchangeAsClient() --- End of inner exception stack trace --- at Halibut.Transport.Protocol.MessageExchangeProtocol.PrepareExchangeAsClient() at Halibut.Transport.Protocol.MessageExchangeProtocol.ExchangeAsClient(RequestMessage request) at Halibut.HalibutRuntime.<>c__DisplayClass25_0.<SendOutgoingHttpsRequest>b__0(MessageExchangeProtocol protocol) at Halibut.Transport.SecureClient.ExecuteTransaction(Action1 protocolHandler)

This is quite urgent

Hi Phil,

Thanks for getting in touch.

You are connecting to a Tentacle at 192.168.2.4:443. It looks like you have another service (maybe a web server) listening on port 443. By default Tentacle is configured to listen on port 10933 so you may need to edit the Tentacle URL in your Octopus Server. If you have configured the Tentacle to listen on port 443 you will need to stop whatever else is using that port.

Cheers,
Shane