How to fix AWS EC2 Status check showing "Instance reachability check failed"?

Question

Since 3 days the second status check has failed and says "Instance reachability check failed", The first check is a pass. Please guide on how to fix this issue.

Few details of the instance are as mentioned below:

1. Instance type: t2.small
2. Platform: Ubuntu(Inferred)
3. Platform Details: Linux/UNIX

Answer 1

Based on comments rebooting the instance helped.

Just in case if anyone else stumbles upon this on in future:

Amazon EC2 now performs automatic recovery of instances by default

A recovered instance is identical to the original instance, including the instance ID, private IP addresses, Elastic IP addresses, and all instance metadata. If the impaired instance has a public IPv4 address, the instance retains the public IPv4 address after recovery. If the impaired instance is in a placement group, the recovered instance runs in the placement group. During instance recovery, the instance is migrated as part of an instance reboot, and any data that is in-memory is lost