This hasn't effected me - yet - but numerous friends and colleagues have been hit by an issue with an Enable migration!
According to Enable, there is no 'wide spread' outage, but based on what i've heard from people that may be underselling the problem....
https://www.enable.net.nz/about-enable/our-network/network-outages
They're apparently going through some hardware changes and aren't sure whats going on.... (according to a friends who's been in contact with them and his ISP and hasn't had connection since Saturday)
https://www.enable.net.nz/about-enable/our-network/future-proofing-our-network
https://www.reddit.com/r/chch/comments/1lnybwz/internet_down/?sort=new