Some Apple engineer asked me to do 3 to 5 reboots.
This sounded like voodoo to me, but I duly did 3 reboots.
Now my iPad gets discovered again (was undiscovered for a week, a reboot did 
not change anything).

Can anybody explain why 3 reboots ≠ 1 reboot?

Gerriet.


> On 28 May 2016, at 02:06, Jens Alfke <j...@mooseyard.com> wrote:
> 
> File a bug report with Apple!
> 
> —Jens (who has intermittent troubles with AirDrop too)
> 
>> On May 27, 2016, at 10:47 AM, Gerriet M. Denkmann <gerr...@mdenkmann.de> 
>> wrote:
>> 
>> 
>>> On 27 May 2016, at 23:18, Steve Christensen <puns...@mac.com> wrote:
>>> 
>>> I haven't worked with AirDrop, but I just looked at the docs and one of the 
>>> delegate methods is -sharingService:didFailToShareItems:error:. Maybe if 
>>> you implement that you can at least see what the specific error is?
>>> 
>> 
>> Well, it does not tell anything. Never gets called. The problem: if there is 
>> no-one found to share things with, then there can be no sharing, and thus no 
>> errors while sharing.
>> 
>> “Invoked when the sharing service encountered an error when sharing items.”
>> 
>> But thanks for the suggestion. It is better to have this delegate method 
>> implemented.
>> 
>> Kind regards,
>> 
>> Gerriet.
>> 
>> 
>>> 
>>> 
>>>> On May 26, 2016, at 10:23 PM, Gerriet M. Denkmann <gerr...@mdenkmann.de> 
>>>> wrote:
>>>> 
>>>> I have an OS X app (10.11.5) which has a button called AirDrop, which does:
>>>> 
>>>> - (IBAction)airDrop: (NSButton *)sender    
>>>> {
>>>>    NSArray *shareItems = list of one or more urls of pdf files
>>>>    NSSharingService *service = [ NSSharingService sharingServiceNamed: 
>>>> NSSharingServiceNameSendViaAirDrop];
>>>>    service.delegate = self;        //      probably not needed
>>>>    [service performWithItems:shareItems];
>>>> }
>>>> 
>>>> Usually this just works:
>>>> I click the AirDrop button, a Panel slides down with a picture of the pdf 
>>>> (or a symbol for multiple files if more than one).
>>>> I grab my iPad (which has “AirDrop: Contacts Only" set) and unlock it.
>>>> The AirDrop panel on the Mac shows (after a few seconds) my Mac Login 
>>>> picture, I click it, and all is well.
>>>> 
>>>> Sometimes it does not work correctly:
>>>> In this case I have to set the iPad to “AirDrop: Everyone". A generic user 
>>>> picture will appear on the Mac and it will still work.
>>>> 
>>>> But sometimes it does not work at all: 
>>>> I can do whatever (like restarting the iPad; restarting the Mac) but still 
>>>> no picture of a recipient will appear in the Mac AirDrop Panel. 
>>>> 
>>>> How can I debug this?
>>>> 
>>>> Gerriet.
>>>> 
>>>> Found some log messages, which seem to be related:
>>>> 
>>>> Clicking my AirDrop button:
>>>> 
>>>> 27/05/2016 12:17:41.630 sharingd[17313]: 12:17:41.629 : Bonjour discovery 
>>>> started
>>>> 27/05/2016 12:17:41.662 sharingd[17313]: 12:17:41.662 : BTLE advertiser 
>>>> Powered On
>>>> 27/05/2016 12:17:41.664 sharingd[17313]: 12:17:41.663 : BTLE advertising 
>>>> hashes <01ca38ce b5742b51 4900>
>>>> 27/05/2016 12:17:41.667 sharingd[17313]: 12:17:41.666 : 
>>>> SDBonjourBrowser::failedToStartAdvertisingWithError Error 
>>>> Domain=NSMachErrorDomain Code=8 "(os/kern) no access" 
>>>> UserInfo={NSLocalizedDescription=wirelessproxd can't start advertising at 
>>>> this time.}
>>>> 27/05/2016 12:17:43.720 sharingd[17313]: 12:17:43.719 : 
>>>> SDBonjourBrowser::failedToStartAdvertisingWithError Error 
>>>> Domain=NSMachErrorDomain Code=8 "(os/kern) no access" 
>>>> UserInfo={NSLocalizedDescription=wirelessproxd can't start advertising at 
>>>> this time.}
>>>> 
>>>> Clicking “Cancel" in the AirDrop Panel:
>>>> 
>>>> 27/05/2016 12:19:46.595 AirDrop[17426]: Error in 
>>>> CoreDragRemoveTrackingHandler: -1856
>>>> 27/05/2016 12:19:46.595 AirDrop[17426]: Error in 
>>>> CoreDragRemoveReceiveHandler: -1856
>>>> 27/05/2016 12:19:46.658 sharingd[17313]: 12:19:46.657 : Bonjour discovery 
>>>> stopped
>>>> 27/05/2016 12:19:46.671 sharingd[17313]: 12:19:46.671 : BTLE advertising 
>>>> stopped
>>>> 
>>>> But still don’t know what to do.
>>>> 
>>>> Gerriet.
>>> 
>> 
>> 
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