freitasm: You should not use external DNS. It impacts negatively in performance for things like YouTube and other services that use some CDN.
The Vodafone call Centre is really getting worse.
It was their cable techies that did it.
They changed my IP to see if that would fix it...when that didn't they told me to use the google DNS and that fixed it. The whole process was approx an hour on the phone talking to them. It not only corrected some bad URL's but it also corrected my ingame latency to wow servers substantially.
I do agree with you about us not having to use external DNS and in my opinion this is yet another example about the sorry state of VF cable.