An ec2 Ubuntu 22.04 VM reachability check failed after 4 days
I've started a stack using cloud formation.
I've noticed, after 4 days, all instances aren't reachable.
Nothing changed in those 4 days, I didn't actively install anything.
What may cause this? I'm not sure how can I check it after it happens because the VM isn't reachable.
The instance type is t2.micro.
Instance status checks
Instance reachability check failed
Check failure at
2024/02/18 10:15 GMT+2 (34 minutes)
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Hi, Check network settings Ensure that the instance's security group or firewall rules allow incoming connections on the necessary ports.
Hello.
If the "Instance status check" fails, it is generally possible that the problem described in the following document is occurring.
https://repost.aws/knowledge-center/ec2-linux-status-check-failure
You can check the EC2 system log by following the steps in the document below.
This system log may contain logs that are useful for troubleshooting.
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/troubleshoot-unreachable-instance.html#instance-console-console-output
I cannot connect to console because this is an instance type of
t2.micro. I did look at the console logs, the last log is from when the device started and I was able to connect. I will take a look at the first link, thanks!
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It does allow. I was able to connect to this instance for 4 days before it died.