Alex Hare wrote:
Were there any other steps you had to go through before changing the DNS worked?
I know that you asked above question to "leventv". Since "leventv" 's solution worked for me perfectly. I thought that I will share what I did exactly before changing my default DNS servers to Google DNS servers. First of all I want to inform you that I had this problem (not being able to do either manual or automatic iCloud backups), since I upgraded my both iPhone and iPad to iOS 9.1 from iOS 8.4. I want to report today that: since I changed my DNS servers on my iPhone and iPad to Google DNS servers, I had two successful automatic backups, and three successful manual backups in a row on my iPad and iPhone. So, I am hundred percent for sure that this Google DNS fix works for me 🙂.
What I did before changing to Google DNS servers ? I did exactly what you did. But it did not work. What did the trick for me, was: After changing DNS to Google DNS, I signed out (logout) from iCloud completely, and after that I signed in (login) to iCloud again. After, I rebooted iPad, I tried manual iCloud backup again, and this time it worked. Since then, it is working perfectly with no problem. So, I suggest you to try logout iCloud, and login to iCloud again, and try manual iCloud backup again. I hope this helps. If not helps, may be this is related to where you locate, or who is your ISP ? May be giving a call to your ISP (Internet Service Provider), asking them if they are aware of this issue, will help too.
This Google DNS fix to iCloud backup problem rocks !!! (for me)
PS. "fromsouth" 's solution on page:18, also works too. I tried his solution before I found this topic on this forum. But it did not work for me, when I setup my iPad as a New iPad instead of restoring from an old backup. When I restored my iPad from and old backup, it also restore my old DNS servers settings (which were Google DNS servers) too. By the way, I always use Google DNS servers in the past and now on all of my Apple devices. For your info, automatic iCloud backups are done every 24 hours (so only 1 automatic iCloud backup in 24 hours).
Thanks to "leventv" again, for being a messenger to Apple Support, for this wonderful DNS change fix.😉