ManagerConnection Login - "Timeout waiting for protocol identifier"

I’m trying to connect to the Asterisk Manager with the ManagerConnection class and originate a call. I’m not able to login, however. When using the Login() method, I always get a Timeout Exception with the message “Timeout waiting for protocol identifier”. My usage is as follows:

ManagerAction action = new OriginateAction();
//Fill in originate options here
ManagerConnection mgrCon = new ManagerConnection("localhost", 5038, "username", "password");
mgrCon.Login();
ManagerResponse response = mgrCon.SendAction(action);
mgrCon.Logoff();

I’m able to connect to the Asterisk Manager through telnet and originate calls so my host, port, username and password are correct.

I can see within the Asterisk CLI that a connection attempt was made, but failed before authenticating, pointing to the connection being attempted, but the welcome response from asterisk (“Asterisk Call Manager/Version”) is not being received within my application.

Am I missing something in my code before attempting to login?

[themicster]

I’m having the same problem. I’ve got a packet capture showing a connection is made and asterisk sends the Asterisk Call Manager/3.2.0 but AsterNET doesn’t seem to get it. I’m running this using the nuget package with an asp.net core project. It works fine when I run it on my windows machine, but once I build it on a linux server that docker image has the problem even if I transport it to my windows machine. So I believe there must be an issue with the netstandard library or some mismatch with .net core. I think the Manager reader might have a problem on .net core. Can anyone else dig into this some more? I don’t have the time to get to the bottom of this one.

[Deantwo]

I assume this is the same issue as #139, which is fixed with #140.