My E2 instance network connection and stability

It sounds like you're experiencing multiple issues with your EC2 instance, including network connectivity problems and stability issues with minikube. Let's address these concerns one by one:

1. Network Connectivity Issues: Intermittent connection problems to your EC2 instance could be caused by several factors:

• Security Group Configuration: Ensure that your security group allows inbound SSH traffic (port 22) from your IP address or the appropriate range.
• Network ACLs and VPC settings: Verify that these are correctly configured and haven't been inadvertently changed.
• Instance Status: Check that your instance is in a "running" state and passing all status checks. Sometimes, underlying hardware issues can cause intermittent connectivity problems.

2. Stability Issues: The stability problems you're experiencing with minikube could be related to resource constraints or configuration issues:

• Instance Type: While a t3.large instance has 2 vCPUs and 8 GiB of memory, running minikube might be resource-intensive. Ensure that your instance has sufficient resources to run minikube and any other applications you're using.
• Minikube Configuration: Check your minikube configuration to ensure it's set up correctly for your EC2 environment.
• System Logs: Examine the system logs in the EC2 console for any error messages or warnings that might indicate the root cause of the minikube issues.

To troubleshoot these issues:

1. Monitor your instance's CloudWatch metrics to look for any patterns or anomalies during times when connectivity drops occur.
2. Review system logs for any error messages related to network failures or minikube issues.
3. Try rebooting your instance, as sometimes this can resolve connectivity issues.
4. Consider using EC2 Instance Connect as an alternative method to connect to your instance, which might help isolate whether the issue is related to your current connection method.
5. For minikube specifically, try uninstalling and reinstalling it, ensuring you're using a version compatible with your EC2 instance's operating system.

If these steps don't resolve the issues, you may want to consider testing your workload on a different instance type or even in a different AWS region to see if the problems persist. This could help determine if it's an instance-specific or region-specific issue.

Remember to document all troubleshooting steps and their outcomes. If the problems continue, it may be worth engaging AWS Support for more in-depth assistance, providing them with detailed logs, timestamps of the outages, and any other relevant information you've gathered from your troubleshooting efforts.

Sources
Connectivity Issue to EC2 Instances | AWS re:Post
Failed to connect to your instance | AWS re:Post