Not asleep. It was very much running an app.Was the iPad asleep and locked? You'll sometime get this message if its locked. Ive had pretty good luck with all the cables and adapter stuff that I've bought but have run into this. Recently bough some ching shin ethernet adapter so I can connect to a behringer XR18 over ethernet so I don't need to run another wireless device. With the ethernet adapter it will disappear in the system settings when the iPad goes to sleep, have to open setting to get it working again. And some times the XR18 app will see the mixer and connect other times I have to enter the IP. At a guess I would think its an IOS security feature to block cable connected hacking devices like security firms use to get into peoples phones.
Usb-B to lightning. I bought on amazon, but it came from China much to my disappointment. But I question how a “cable” can function then quit...Are you using a USB-B-Lightning cable , or a standard USB B-USB A with an apple dongle ? I have had some inconsistencies with 3rd party cables that will function a while then quit....some def work better than others, but I have had the best result with a dongled setup......your mileage will definitely vary.....
BandHelperHmm that is strange. Wondering if it has anything to do with recent changes to the AFXIII firmware. What IOS apps were accessing the AXF?
Amazon product ASIN B014VGHG0UUsb-B to lightning. I bought on amazon, but it came from China much to my disappointment. But I question how a “cable” can function then quit...
Links to dongle?
Ok, so I've been using a USB B to lightning cable from Amazon for about a year.BandHelper
My iPad is relatively old. And has a limit of iOS 9.something.Tested today with AFX firmware 7.0.2, 2015 iPad pro and 2013 iPad air both work as it should with no error. Both iPads on the latest IOS 12.4.1.