I see this:
default 15:14:10.967991+0200 sharingd Received Handoff payload reply from "<private>" via Rapport (<private>) with requestIdentifier <private>, xid <private>
default 15:14:10.968033+0200 sharingd Received requested Handoff payload via <private> from "<private>" (<private>) for <private> with activity payload of size <private> for requestIdentifier <private> (<private>). RTT:<private>
default 15:14:10.970822+0200 sharingd DeviceDiscoveryUpdate: SFDeviceDiscovery (CLink), 0x1 < Info >, cflags 0x21 < AdvData >, ScanRate Invalid, ScreenOff, RSSI Change Detection, RSSI >= -80
info 15:14:10.972649+0200 sharingd NearbyInfo sending activity level, original: 0xb encrypted:0x2
info 15:14:10.972951+0200 sharingd [NearbyAction] Scan restart skipped when unchanged
info 15:14:10.972982+0200 sharingd [NearbyInfo] Scan restart skipped when unchanged
info 15:14:10.973205+0200 sharingd [Prox] Scan restart skipped when unchanged
default 15:14:11.011373+0200 sharingd Streams are being requested from service = <private>
default 15:14:11.011430+0200 sharingd Streams are being requested for bonjour name = <private>
info 15:14:11.011580+0200 Yoink getContinuationStreamsWithCompletionHandler(), inputStream=(null) outputStream=(null) error=Error Domain=NSPOSIXErrorDomain Code=94 "Bad message" UserInfo={NSLocalizedDescription=Could not set up internal streams}
error 15:14:11.011466+0200 sharingd Service does not have a bonjour name
(This is from iOS 26.4.2 to macOS v26.4.1, right after I click on my app's Handoff icon in the Dock on my Mac, so the service advertisement part works).
The last line might be the kicker, but I don't know. Restarts of all my devices didn't change a thing.
All the important values are <private> because I don't have the time right now to go through Apple Configurator, Device Management and all that jazz to set up a profile that enables private logging. I also tried in a VM, but couldn't get Handoff to work there for the life of me, so …
But maybe that last line is the tell-all anyway?
My iPhone's name is just iPhone 14 Pro, and I don't see other devices with that name on my network anywhere.
And the following is from macOS 26.4.1 to iOS 26.4.2, right after tapping the Handoff prompt for my app in the app switcher:
default 15:39:18.006109+0200 sharingd Received Handoff payload reply from "<private>" via Rapport (<private>) with requestIdentifier <private>, xid <private>
default 15:39:18.006248+0200 sharingd Received requested Handoff payload via <private> from "<private>" (<private>) for <private> with activity payload of size <private> for requestIdentifier <private> (<private>). RTT:<private>
default 15:39:18.008419+0200 sharingd DeviceDiscoveryUpdate: SFDeviceDiscovery (CLink), 0x21 < Info iCloud >, cflags 0x23 < AdvData Distance >, ScanRate Invalid, ScreenOff, ScreenOffRescanInterval 900, RSSI Change Detection, RSSI >= -75
info 15:39:18.008826+0200 sharingd NearbyInfo sending activity level, original: 0xb encrypted:0xf
debug 15:39:18.009011+0200 sharingd Ignoring host AP check for advertising WiFiP2P bit
info 15:39:18.009027+0200 sharingd [NearbyAction] Scan restart skipped when unchanged
info 15:39:18.009038+0200 sharingd [NearbyInfo] Scan restart skipped when unchanged
info 15:39:18.009049+0200 sharingd [Prox] Scan restart skipped when unchanged
debug 15:39:18.013154+0200 sharingd SDStatusMonitor: SBSEventObserved <private>
default 15:39:18.013453+0200 useractivityd client process changing types to scan for to <private>
info 15:39:18.013492+0200 sharingd requested scanning for <private>
default 15:39:18.013645+0200 sharingd Starting<private><private><private> scanning with duplicates:<private> for peers [<private>]
debug 15:39:18.019911+0200 sharingd SystemUI unknown identifier: '<private>'/ '<private>'
default 15:39:18.019936+0200 sharingd SystemUI changed: <private> -> <private>
default 15:39:18.019948+0200 sharingd SDAirDropNearFieldService Buddy not visible, attempting to start
default 15:39:18.020960+0200 sharingd SDAirDropNearFieldService: start
error 15:39:18.020983+0200 sharingd SDAirDropNearFieldService.startNearFieldController SKIP - feature disabled
error 15:39:18.021622+0200 sharingd SDAirDropNearFieldService: Near field Controller is not available.
default 15:39:18.031675+0200 sharingd on lock screen: <private>
debug 15:39:18.043313+0200 sharingd IDSContinuity didStartScanningForType: <private>
info 15:39:18.176112+0200 sharingd BLE NearbyInfo changed SFBLEDevice ID bb004158-c262-1000-8000-001ff3fb80df, RSSI -71 (-63)t~F, Ch 39, AdvD <2a987184d3>, Nm 'BBOEgsiK', Md 'BBcYBtEC', Paired yes, Cnx no, OBC=?
info 15:39:18.176172+0200 sharingd NearbyInfo received activity level: 0x1 after decryption
default 15:39:18.760433+0200 sharingd Client '<private>' lacks device name entitlement
error 15:39:18.781255+0200 Yoink Error retrieving proxy object. Returned values (proxy = <private>, deviceName = <private>, deviceID = <private>, deviceIP = <private>, error = <private>)
default 15:39:18.781265+0200 sharingd Streams are being requested from service = <private>
default 15:39:18.781299+0200 sharingd Streams are being requested for bonjour name = <private>
error 15:39:18.781337+0200 sharingd Service does not have a bonjour name
The same error gets logged, if it even means anything. Lacks device name entitlement is intriguing as well - is there a new one for handoff introduced in macOS 26.4.x? I couldn't find that line in the macOS logs.
Thank you kindly,
– Matthias
