Can not connect to lightsail server even on web ssh, port is open

Hello.

It may be blocked by a firewall on the Lightsail OS side.
Try running the command in your startup script when restoring from a snapshot as described in "An OS-level firewall is blocking SSH port access" in the following document:
https://repost.aws/knowledge-center/lightsail-resolve-ssh-console-errors

sudo ufw disable
sudo iptables -F
sudo mv /etc/hosts.deny /etc/hosts.deny_backup
sudo touch /etc/hosts.deny
sudo systemctl enable sshd
sudo systemctl restart sshd

Hi,

I would try creating a new instance from a snapshot with a larger bundle and seeing if that resolves the issue. If that resolves the issue, you likely need a larger plan for your application. If you are still seeing issues, you could try creating a snapshot of the instance root volume and attaching it to a new instance to copy the data over. https://docs.aws.amazon.com/lightsail/latest/userguide/amazon-lightsail-create-an-instance-root-volume-snapshot.html

You can also try connecting to your instance via a local SSH client to rule out firewall configuration issues.

You can follow this doc if your local machine uses MacOS or Linux: https://docs.aws.amazon.com/lightsail/latest/userguide/amazon-lightsail-ssh-using-terminal.html

You can follow this doc if your local machine uses windows: https://docs.aws.amazon.com/lightsail/latest/userguide/lightsail-how-to-ssh-connect-to-instance-virtual-private-server-using-putty.html

Hello,

Were you able to connect to your instance? if you are still running into issues, please cut us a customer ticket.