Lightsail network disconnected while using as a tunnel after June 28th

Hi, If your AWS Lightsail instance is experiencing network connectivity issues and you've ruled out CPU credits as a potential issue, you can try to troubleshoot using these steps:

1. Check Logs and Monitoring:
   • Review the instance's system logs, application logs, and any monitoring metrics to identify any anomalies or errors that might be causing the network connectivity issues.
2. Networking:
   • Check that the instance's networking settings are correctly configured, this includes security groups, firewall settings, and network ACLs.
3. Analyze traffic:
   • Use network monitoring tools to analyze the incoming and outgoing network traffic to identify any unusual patterns or spikes that might be causing the connectivity problems.
4. Resource Utilization:
   • While you have checked CPU usage, also monitor memory and disk usage. High memory or disk usage could potentially impact network performance.
5. Check for Updates:
   • Ensure that your instance's operating system, software, and applications are up to date with the latest patches and updates.
6. Network Throughput Limits:
   • AWS Lightsail instances have predefined network throughput limits based on the instance plan. Make sure you are not exceeding these limits during periods of high network usage.
7. Instance Size:
   • Consider upgrading to a higher instance size with better network performance.
8. Test Connectivity:
   • Test the network connectivity to different sites from your Lightsail instance using tools like ping, traceroute, or other network testing tools.

Remember to do these steps one at a time and test after each change to see if the issue improves. This will help you narrow down the root cause and find an effective solution. Hope this helps!