It is being widely reported that some users are experiencing errors with iCloud after upgrading to iOS 8. The issue has to do with the iCloud Terms & Conditions which were changed with the new version of iOS. This is very similar if not identical to the issue that plagued users after iOS 7 was released last year. Basically what happens is after upgrading, users are prompted to accept the new iCloud Terms & Conditions but when they attempt to do so they get a “Unable to connect to server” error. This then disables iCloud on their device.
If you have experienced this error here is how I was able to get around the error. I will note that this has not work for everyone but it seems to work for the large majority.