I have a dev environment hosted by AWS (t2.large, RHEL 7.4) that is backed up with a snapshot every couple of hours. Today, I tried to create a new instance from one of those snapshots to run some tests but when I started the instance I got a “Instance reachability check failed” error.
Things I have tried so far:
- Double checked security groups
- Rebooted the instance
- Made sure the instance OS was the exact same OS as the instance the snapshot was taken of
- Followed this guide on troubleshooting an unreachable instance, none of the error messages mentioned were in the system log
- Got a screenshot of the unreachable instance, it just shows a RHEL login screen
- Ran the EC2 Rescue tool, it’s been running for 45 minutes now and has returned no results.
- SSH-ing into the server gives a “Network error: Connection timed out” error
What else can I try to find more information about this error?
Note: This instance contains irreplaceable data, nuking it and starting over isn’t an option.
