Why is my server, not serving my website after an update?

[Rob Swan]

This is a common problem, in most cases a second reboot should fix it.

I am not sure what causes this however, it sometimes occurs after EHCP force updates and also Ubuntu updates.

If this does not fix it, try turning it off completely, waiting 5 minute and then booting it up again.

Another thing is to turn of your router, wait 5 minutes and then turn the router back on.