No Internet connection after droplet resize

Droplet got cut off from Internet again… Every time we reboot it networking fails to start, takes around 20 minutes to come up but only after deleting contents of /etc/resolv.conf

We though it was an issue with ufw or somthing similar, but disabling it and iptables didnt work.

After a while server got internet access again, but we are still seeing issues, for example:

$ sudo apt-get update Err:1 http://apt.newrelic.com/debian newrelic InRelease Could not resolve ‘apt.newrelic.com’ Err:2 http://security.ubuntu.com/ubuntu xenial-security InRelease Could not resolve ‘security.ubuntu.com’ Err:3 http://mirrors.digitalocean.com/ubuntu xenial InRelease Could not resolve ‘mirrors.digitalocean.com’ Err:4 http://mirrors.digitalocean.com/ubuntu xenial-updates InRelease Could not resolve ‘mirrors.digitalocean.com’ Err:5 http://mirrors.digitalocean.com/ubuntu xenial-backports InRelease Could not resolve ‘mirrors.digitalocean.com’

This is not indeed and best would be to contact support. When you SSH-ed, it means it does have Internet connection. Make sure you ping-ed some well know sites like google.com, bing.com, digitalocean.com.

While waiting for them, you can try restarting Droplet once again with:

sudo reboot

Or maybe restart just networking and NetworkManager but I would more recommend to just reboot. In case you want it you can go with:

sudo systemctl restart networking && sudo systemctl restart NetworkManager

I would open a support ticket