Cannot connect to my AWS Lightsail server

1.Restart the Instance:

Sometimes, simply restarting the instance can reinitialize the network adapter and restore connectivity.

You can restart the instance from the Lightsail console:

1. Go to the Lightsail console.
2. Select the affected instance.
3. Click on the "Stop" button to stop the instance.
4. Once the instance is stopped, click on the "Start" button to start it again.

2.Check the Networking Settings:

Ensure that the networking settings of your instance are correctly configured.

Verify that the public IP is attached and the firewall settings allow the necessary ports (like SSH port 22).

3.Connect via SSH from the Lightsail Console:

If you're unable to connect via your usual SSH client, try connecting directly from the Lightsail console using the built-in SSH client. In the Lightsail console, select your instance and click on "Connect" to use the web-based SSH terminal.

4.Create a Snapshot and Restore:

If the above steps don't work, consider creating a snapshot of your instance and restoring it to a new instance. This will create a new instance with the same configuration as your current one but with a fresh network setup.