No go for me either on UberGroup fibre in Whangarei.
But I have to ask, why are you downloading the same file every time? Why not just have the file downloaded once and then have it on a USB stick or something that you can reuse with each client? The download is just a generic install file and is the same every time you download it. You only have to enter in the product key before you can download it to prove to MS that you have in fact got a license, it doesn't do anything to the file you download. You still have to enter in the product key when you install Office.