When I pinged google, I saw: “unknown host google.com” When I clone the source, I saw: “can’t access to github” When I install package, I saw: “Fail to fetch …”
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What happens when you execute
ifconfig -acan you see the eth0 interface listed? If this one is not present then we will need to sort this out.
I know that sometimes some packages can be uninstalled somehow on reboot and there are cases where cloud-init is one of them. You can check if the package is present and currently installed on your droplet as well.
A similar issue was reported here as well: https://www.digitalocean.com/community/questions/no-internet-connection-after-droplet-reboot
You can check the answer posted from lukasea17033bb7e7ecf80fc21 and see the suggested steps if needed.
Also, have you tried to power off the droplet and then start it again instead of just rebooting it? You can perform this action from the control panel.
Let me know how it goes.
I’m glad that you’ve sorted this!
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I’ll urge you to check @alexdo’ s answer. See if following his suggestions helps you with your network issue.
Please give it a try and let us know how did it go.