We have received the following from the IRD. We'll update this posting when the issue is resolved.
We would just like to quickly take this opportunity to apologise to you and all your clients who have attempted to use ir-File today.
We understand they have been experiencing issues with sending their files through to us.
And while the matter is currently being investigated by our internal IT partner, unfortunately, we do not have an estimated time to fix for you.
IR Payroll Communications (including the ir-File Technical Helpdesk)