Ok, I can reproduce this and it looks to me like it is iOS bug with finding the OS4.
If I start search on both iOS devices, they will sit on screen searching for OS4.
Now at the same time, on my MacOS I started the app I installed before. A new update popped up and I upgraded to the latest. Then I removed the OS4 that was found during initial MacOSX install / setup.
Next, I did stop iPhone and added OS4 ID manually to it while iPad was still siting on search screen, searching for it.
After iPhone was added manually, I removed OS4 entry on MacOSX, since I wanted to see it it will autowind again or if it will suffer from same issue as iOS devices. Now when I presses search on Mac OSX, it did find OS4.
But also what I noticed that iPad also found it while was sitting and searching.
- So not sure if initial manual add to iPhone triggered something on network that iPad found it
- Or the MacOSX search also caused the iOS get the OS4 broadcast.
I was not looking at iPad, so I am not sure which one from two above really caused.
Since they are on same WIFI and right next to me, I think I presented that it is no my network
EDIT: above steps were performed with v28 firmware on OS4. Just notice there is v29.