It's strange, nothing in the hosts file, any ping says it can't find the host http://techblog.netflix.com/, or even anyone of those check ip sites says the same. Asked some work colleagues here and in Ireland and it seems our company is blocking it, I guess through the firewall which unfortunately I can't disable.
I guess it is unfortunate though not too surprising that an employer would be blocking netflix.com.
Here is the basic checklist for something like this:
check your hosts file ping the website tracert the website clear dns cache check dns server up/down temporarily disable av/firewall
If all the above indicate normal operation but it still fails, it could be blocked anywhere upstream of you.