Q: Contact Apple support with your TC issue disappearing
I just spoke with Apple support with regards to this problem with the TC disappearing from the Airport Utility GUI.
Apple support requests that everyone posting who is having this same problem call Apple support so that the proper resources can be brought to bear on the issue and the issue can be resolved more quickly. Currently there are an insufficient number of users contacting Apple support directly about this issue.
I was able to replicate the problem while speaking with an Apple support senior tech that when you add your Apple ID to the Back to My Mac on the TC and the TC restarts, you will loose connectivity with the TC and the TC will throw an error box that the unit is not able to be found. When you remove the Apple ID from Back to My Mac and restart the TC, the TC reconfigures and reappears in the Airport Utility GUI.
Please call Apple support as often as possible with technical issues such as this.
MacBook Pro with Retina display, OS X El Capitan (10.11.2)
Posted on Aug 13, 2016 7:44 AM