definitely a bug with iphone and ios 8 setting up apple networks. Major problem for us at work because we setup multiple apple networks for people weekly. iphone 5s running ios 7 worked fine. Ios 8 update to phone and here's what happens:
1.) airport express and/or apple extreme/time capsule (ive tried them all) shows up under wifi settings as its default apple name for initial setup.
2.) i select the apple device in wifi settings to configure (for the first time). Get a screen that says trying to get settings from your network. This attempt always goes onto an error message saying "an unexpected error occurred" and it cannot setup the apple device. Ive tried this in several homes with different brand new apple equipment, and extensive troubleshooting techniques. No luck.
3.) However, I then hop onto an ipad running ios 7. I use the same procedure in steps 1 and 2 and the device configures without issues. I then look at airport utility from ios 7 ipad and all apple equipment is in the green. However, if i pickup iphone with ios 8 (attached to the wifi network) at this point, and run airport utility, i can see all the apple devices (extreme, expresses, etc) but they all have exclamation points next to them. When i click on the exclamation point they say the device cannot be found etc.
This is obviously a bug due to our extensive troubleshooting. We've also spoken to Apple Care and apparently its not a known issue at this time but getting this message to the proper Apple IOS8 developers team seems impossible over the phone as I was transferred about 4 times to no avail.
This is a major inconvenience for us. Please make sure the proper Apple Team members are aware of this. Thanks