We have a network content-filter consisting of a main target/GUI, a FilterDataProvider extension and a FilterControlprovider extension. The app is installed via MDMs and works without issues the vast majority of times, but during testing of TestFlight builds we've found that intermittently the device fails to install the network extensions and blocks internet access. The GUI is working fine though. From the logs we can see that when this happens the device tries to start the network extensions repeatedly. The issue is solved by restarting the device. Has anyone experienced similar issues or have some ideas of what might cause this behaviour? These are some of the logs we see in Console: neagent [u E6D696F2-62FB-4262-A97C-B2006EC528C5:m (null)] [<private>(<private>)] Hub connection error: Error Domain=NSCocoaErrorDomain Code=4097 "connection to service named <BundleID>.FilterDataProvider" ugDescription=connection to service named <BundleID>.FilterDataProvider}code-block Failed to start the data extension <BundleID>.FilterDataProvider: Error Domain=NSCocoaErrorDomain Code=4097 "connection to service named <BundleID>.FilterDataProvider" ugDescription=connection to service named <BundleID>.FilterDataProvider} nehelper Denying connection from nesessionmanager (264) because it is missing the com.apple.private.network.socket-delegate entitlement nesessionmanager <BundleID>[inactive]: starting launchd Service could not initialize: posix_spawn(/private/var/containers/Bundle/Application/F84E2325-05A6-4DC2-8DD6-20C97EF43E8D/<AppName>.app/PlugIns/FilterDataProvider.appex/FilterDataProvider) failed, error 0x2 - No such file or directory nesessionmanager NEFilterPlugin(<BundleID>[inactive]): Sending start command nesessionmanager <BundleID>[inactive]: starting neagent Looking for a data extension with identifier <BundleID>.FilterDataProvider neagent [d <private>] <PKHost:0x718915550> Query: { NSExtensionIdentifier = "<BundleID>.FilterDataProvider"; NSExtensionPointName = "com.apple.networkextension.filter-data"; } neagent Found 1 data extension(s) with identifier <BundleID>.FilterDataProvider neagent Looking for a control extension with identifier <BundleID>.FilterControlProvider neagent [d <private>] <PKHost:0x718915550> Query: { NSExtensionIdentifier = "<BundleID>.FilterControlProvider"; NSExtensionPointName = "com.apple.networkextension.filter-control"; } neagent Found 1 control extension(s) with identifier <BundleID>.FilterControlProvider neagent Beginning data extension request with extension <BundleID>.FilterDataProvider neagent [u C743CE7B-9E19-4A41-BF46-91AEFB24169D:m (null)] [<private>(<private>)] Failed to start plugin; pkd returned an error: Error Domain=PlugInKit Code=4 .<AppName>.FilterDataProvider(C743CE7B-9E19-4A41-BF46-91AEFB24169D): Error Domain=RBSRequestErrorDomain Code=5 "Launch failed." UserInfo={NSLocalizedFailureReason=Launch ErrorDomain Code=2 "No such file or directory" UserInfo={NSLocalizedDescription=Launchd job spawn failed}}}" UserInfo={NSLocalizedDescription=RBSLaunchRequest error trying to launch 7B-9E19-4A41-BF46-91AEFB24169D): Error Domain=RBSRequestErrorDomain Code=5 "Launch failed." UserInfo={NSLocalizedFailureReason=Launch failed., NSUnderlyingError=0xdb88df3d0 {Error UserInfo={NSLocalizedDescription=Launchd job spawn failed}}}} neagent Extension request with data extension <BundleID>.FilterDataProvider started with identifier (null) neagent Failed to start the data extension <BundleID>.FilterDataProvider: Error Domain=PlugInKit Code=4 "RBSLaunchRequest error trying to launch vider(C743CE7B-9E19-4A41-BF46-91AEFB24169D): Error Domain=RBSRequestErrorDomain Code=5 "Launch failed." UserInfo={NSLocalizedFailureReason=Launch failed., SIXErrorDomain Code=2 "No such file or directory" UserInfo={NSLocalizedDescription=Launchd job spawn failed}}}" UserInfo={NSLocalizedDescription=RBSLaunchRequest error trying to DataProvider(C743CE7B-9E19-4A41-BF46-91AEFB24169D): Error Domain=RBSRequestErrorDomain Code=5 "Launch failed." UserInfo={NSLocalizedFailureReason=Launch failed., SIXErrorDomain Code=2 "No such file or directory" UserInfo={NSLocalizedDescription=Launchd job spawn failed}}}} nesessionmanager NESMFilterSession[FilterDataProvider:0C4C9E40-5005-47A5-8C60-F7C8630F29DF] in state NESMFilterSessionStateStarting: plugin NEFilterPlugin(e with error: 1 nesessionmanager <BundleID>[266]: disposing neagent Initializing the delegate neagent App <BundleID> is not installed or is not valid neagent App <BundleID> is not installed or is not valid neagent Failed to find a com.apple.networkextension.filter-data extension inside of app <BundleID> neagent NEAgentSession: failed to create the delegate nesessionmanager <BundleID>[259]: Tearing down XPC connection due to setup error: Error Domain=NEAgentErrorDomain Code=2 "(null)" nesessionmanager <BundleID>[259]: XPC connection went away nesessionmanager NESMFilterSession[FilterDataProvider:0C4C9E40-5005-47A5-8C60-F7C8630F29DF]: Failed to start with error: Error Domain=NEAgentErrorDomain Code=2 "(null)"