Here’s how to restart networking services on your linux webserver. I find that especially with VPS web servers, there are times where your network gets blocked completely.
To reset, get into SSH via console on your VPS web server company’s control panel.
Type:
service network stop
then
service network start
For some web servers, you might have to use:
/sbin/service network stop
and
/sbin/service network start
Wait like 5 seconds and see if you can ping the outside world:
ping google.com
If you get connected, you should be good to go.
This can save lots of time restarting a faulty network yourself instead of opening a support ticket and waiting forever.