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Inaccessible server - reachability tests passed

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Hello all,

I am using running an EC2 instance and have suddenly lost ability to connect to it. I have rebooted and restarted, and I have tried SSH, EC2 instance connect, and session manager but have had no success with reaching this server. The default system and instance reachability tests are both passing... any ideas?

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Amazon EC2Sitzungsverwaltung
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English
Parth
gefragt vor einem Monat128 Aufrufe
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Hello.

It may not be available depending on the instance type, but have you tried connecting via serial console?
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-serial-console-prerequisites.html

You may also want to check the EC2 system log and check for any errors using the steps in the document below.
I think there is another way to take a snapshot and recreate EC2.
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/troubleshoot-unreachable-instance.html#instance-console-console-output

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Riku_Kobayashi
beantwortet vor einem Monat
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Oleksii Bebych
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  • Parth
    vor einem Monat

    I was originally on free tier but have made the plunge to a t3, which has the serial console available. There was a faulty program consuming all the memory and causing the ssh to time out - it is now resolved. Thank you for the tip!

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