I’ve also spent some time investigating this. While monitor mode works, setting the channel using CoreWLAN’s [CWInterface setWLANChannel:error:] API does not behave as expected. As a result, capturing isn’t reliable for third-party apps on Macs with the Apple N1 Wi-Fi chip or the MacBook Neo. I've identified and submitted two issues: FB22295165: [CWInterface setWLANChannel:error:] does not work on a disassociated interface, even though the documentation indicates it should, and it behaves correctly on older Macs. FB22295685: Once in monitor mode, [CWInterface setWLANChannel:error:] reports a successful channel change and the interface reflects the requested channel, but capturing continues on a different channel (usually the channel the interface was operating on previously to being placed in monitor mode). There also appears to be a race condition between entering monitor mode and macOS attempting to rejoin a network shortly after calling [CWInterface disassociate]. While I can’t confirm this definitively, there are cases where the interface seems to revert to an associated state after being placed in monitor mode. I hope this can be addressed in a future macOS update, as the ability to capture Wi-Fi traffic and use apps that rely on it is one of the reasons many WLAN and IT professionals choose Macs.

Well, today both Xcode and altool are working again. No changes on my side.

Thank you. I’ll give notarytool a try. Any suggestions on how to resolve the Xcode issue? I have no pending agreements, all agreements are signed and there’s only one team.

I just started getting the same error in Xcode and I'm NOT a member of multiple teams. I also don't have any outstanding agreements to be signed. If it helps, altool is giving me this error when trying to notarize a .pkg (the same workflow was working two days ago): java.io.IOException: Server returned HTTP response code: 504 for URL: https://contentdelivery.itunes.apple.com/transporter/lib/osgibootstrapper.jar at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source) at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) at java.base/java.net.URL.openStream(Unknown Source) at com.apple.transporter.launcher.Application.start(Application.java:340) at com.apple.transporter.launcher.Application.main(Application.java:947) java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at com.apple.transporter.launcher.Application.start(Application.java:450) at com.apple.transporter.launcher.Application.main(Application.java:947) Caused by: org.osgi.framework.BundleException: Could not resolve module: com.apple.transporter.starter [17]   Unresolved requirement: Import-Package: javax.annotation; version="[3.0.0,4.0.0)"; resolution:="optional"   Unresolved requirement: Import-Package: com.apple.transporter.launcher.asu; version="[1.0.0,2.0.0)" at org.eclipse.osgi.container.Module.start(Module.java:463) at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:440) at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:459) at com.apple.transporter.bootstrap.BootstrapperPhase2.bootstrapBundles(BootstrapperPhase2.java:321) at com.apple.transporter.bootstrap.BootstrapperPhase2.start(BootstrapperPhase2.java:153) at com.apple.transporter.bootstrap.BootstrapperPhase1.startOSGiFramework(BootstrapperPhase1.java:319) at com.apple.transporter.bootstrap.BootstrapperPhase1.bootstrap(BootstrapperPhase1.java:99) at com.apple.transporter.bootstrap.BootstrapperPhase1.bootstrap(BootstrapperPhase1.java:59) at com.apple.transporter.launcher.Launcher.launchBootstrapper(Launcher.java:37) ... 6 more  Out: *** Error: Notarization failed for '<EDITED>.pkg'. *** Error: An error occurred uploading to Apple Services. (-10000)