We had VDSL activated a couple of months ago.
We found we had problems where the internet would go down every so often (didn't seem to be a pattern) but restarting the router (Huawei HG659b) seemed to fix this.
I presumed it was due to too much load and the router overheating (others seemed to complain about this online).
I bought a new router/modem (Asus DSL-n66u) and we are still having problems.
Stats below (Huawei):
We don't have a master filter, but don't have a landline (I believe technically from other reading on the form that on the Naked package we have a landline with a bar installed) so I've connected the phone cable direct to the wall (I also tried previously with an ADSL filter - no impact). I also tried a couple of different phone points - moving from the one in our office to the one in the hall gives us an extra few mb on the sync speed so my guess is we have cr*p internal wiring.
In case anyone suggests it, we did try and get fibre direct but we rent as part of a 3 unit development and (once we got our landlord to agree) one of the other units refused permission (as Chorus have such a bad rep).
Any suggestions on what to do? I'm thinking a master filter may help. We're in mission bay, Auckland.