Dear Jong99,
Wireless connection: 2.4Ghz or 5Ghz
IPad Air2: Ios build:
Router wireless settings:
Best regard,
JK
hi jk, there has been a lot of talk about this. A bit here and a lot over at SNB. I think it is pretty much universally experienced by those who have taken the time to check for it. Basically it seems to affect uniquely the iPad Air 2 (although I'm not sure the latest iPhones have been tested, so could be affected). 5Ghz only. We think it started with IOS 9 and affects up to 9.0.2. We have tried with beamforming on and off. Not found a 5Ghz setting which doesn't show the problem (tried playing with beacon times and it didn't help).
The symptom is that when the iPad Air 2 sleeps it:
- Connects to 5Ghz radio
- 30-40 secs later, if you refresh the wireless network log you see the Rx speed drop to single digits (often 7)
- 30-40 secs after that the device drops off the network
- after about another minute it reconnects to the network at full speed and you can see it reapply for an IP address in the main log
This repeats indefinitely on roughly 3 minute cycles until the iPad wakes or it decides to connect, instead, to the 2.4Ghz network, where it will stay connected.
As I say, several have seen this behaviour. I think it is solidly consistent. It does not affect any of our other iDevices - iPad 2 (not Air), iPhone 5, 5s, 6, iPad Mini, iPad Mini 2 - just the Air 2.