VS Code SSH client keeps disconnecting from EC2 instance

Question

I am getting connected to the ec2 (ubuntu) instance with VScode SSH and after a few seconds it gets disconnected and impossible to reconnect if I don't reboot the instance and after dozens of attempts to reconnect. Is there something I should check that I haven't? are there any special configurations i need to make?

Answer

Are you sure that instance state remains healthy when you get disconnected from VS code SSH client.

Based on the problem description, issue seems to be something at instance side, network configuration might be right as after rebooting the instance you are able to connect.

I'd start with following:

Check cloudwatch metrics for this EC2 instance and make sure that EC2 instance is not running out of memory/CPU 100% utilization

Next thing I'd do is, set up [EC2 Serial Console](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-serial-console.html) and then see what exactly is going on.

Comment here how it goes, happy to assist further.

Abhishek

Answer

![this is what I get when I try to connect with the serial console after setting up IAM Policy](/media/postImages/original/IMSVjokHFmRgWFWn7gx_8Jbw)

Answer

I get the same issue. VS code keeps disconnecting from the EC2, and I am not able to reconnect unless I restart the instance.

VS Code SSH client keeps disconnecting from EC2 instance

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