We have some node cutovers planned for today. Details on affected nodes/areas that will most definitely receive a short interruption to service are listed on Vodafone Community here http://community.vodafone.co.nz/t5/Network-status/Cable-broadband-upgrades-in-Wellington-region/m-p/197165#M1038
No, not Island Bay specifically at the moment, but I understand this may help as other stuff is shuffled around.
So when Island Bay? We have really suffered now for a long time