I have tests where I connect to NEPacketTunnelProvider. I run tests with circleci and fastlane, on self hosted intel and arm macs. I updated macs from macOS 13 to macOS 14 and the tests on arm stopped connecting, while the same tests on intel kept working as usual. Moreover, I noticed the tests don't work when run from circleci and fastlane. If I cancel the job and click "connect" myself on the app that stayed hanging from the cancelled tests, the connection will succeed. But if the tests are running, the connection will fails. Running the tests from xcode succeeds too. These are the logs from the tunnel. Could you suggest me where to dig? Or maybe you can see the issue from the logs? Tunnel logs when they fail

Hi, after upgrading to MacOS Sequoia, my connection to my local IP address does not work. The issue is with the PF (MacOS advanced firewall), as I confirmed that my local application works disabling it temporarily. Does anyone know how can I do to solve this problem? As APP developer, this is a big problem for me. Thanks in advance.

I tried building some app logic around NetworkMonitor.isConnected in my watch app (I want to trigger an update when the user opens the app and isConnected == true, otherwise observe NetworkMonitor.isConnected until it changes to true), and I found out that on a real device, NetworkMonitor.isConnected is always false. This does not seem to be documented anywhere. Am I right in assuming NetworkMonitor is not to be trusted on the watch? watchOS version is 18. I found an old post where eskimo argues that NWPathMonitor is not useful on the watch (which is also not documented), is it the same for NetworkMonitor? https://forums.developer.apple.com/forums/thread/127080

This problem doesn’t appear to relate to the app as everything worked when using http (although an https setup issue may still be the problem). The problem appears to relate to the SSL server certificate on the Ubuntu server and the fact that apple does not accept that it is secure. However I have no problem with the equivalent Android app or web browser connections to the same rest API web services. There are numerous posts on these problems on Apple and other Forums, but none have helped me successfully address the issue. I ran an SSL server test on https://www.ssllabs.com/ssltest/ which gives ratings for SSL sites. The test gave an A rating although a number of minor issues were shown that may be crucial to the iOS failure. Some Sectigo certificates said self signed, which I couldn't understand. Error message from XCode log attached 2025-09-10 10:28:01.725091+0100 locateandclock[2291:1585213] ATS failed system trust 2025-09-10 10:28:01.725192+0100 locateandclock[2291:1585213] Connection 1: system TLS Trust evaluation failed(-9802) 2025-09-10 10:28:01.725291+0100 locateandclock[2291:1585213] Connection 1: TLS Trust encountered error 3:-9802 2025-09-10 10:28:01.725352+0100 locateandclock[2291:1585213] Connection 1: encountered error(3:-9802) 2025-09-10 10:28:01.726727+0100 locateandclock[2291:1585213] Task <4E41098F-6B71-4FB8-8753-78DD32961812>.<1> HTTP load failed, 0/0 bytes (error code: -1200 [3:-9802]) 2025-09-10 10:28:01.736504+0100 locateandclock[2291:1585213] Task <4E41098F-6B71-4FB8-8753-78DD32961812>.<1> finished with error [-1200] Error Domain=NSURLErrorDomain Code=-1200 "An SSL error has occurred and a secure connection to the server cannot be made." UserInfo={NSLocalizedRecoverySuggestion=Would you like to connect to the server anyway?, _kCFStreamErrorDomainKey=3, NSErrorPeerCertificateChainKey=( "<cert(0x10681be00) s: *.xxxxxxxxxxx.co.uk i: Sectigo Public Server Authentication CA DV R36>", "<cert(0x10681c800) s: Sectigo Public Server Authentication CA DV R36 i: Sectigo Public Server Authentication Root R46>", "<cert(0x10681d200) s: Sectigo Public Server Authentication Root R46 i: Sectigo Public Server Authentication Root R46>" ), NSErrorClientCertificateStateKey=0, NSErrorFailingURLKey=https://xxxxxxxxxxxx.co.uk/insertclocking, NSErrorFailingURLStringKey=https://xxxxxxxxxxxx.co.uk/insertclocking, NSUnderlyingError=0x282361650 {Error Domain=kCFErrorDomainCFNetwork Code=-1200 "(null)" UserInfo={_kCFStreamPropertySSLClientCertificateState=0, kCFStreamPropertySSLPeerTrust=<SecTrustRef: 0x281cf4460>, _kCFNetworkCFStreamSSLErrorOriginalValue=-9802, _kCFStreamErrorDomainKey=3, _kCFStreamErrorCodeKey=-9802, kCFStreamPropertySSLPeerCertificates=( "<cert(0x10681be00) s: *.xxxxxxxxxxxxxco.uk i: Sectigo Public Server Authentication CA DV R36>", "<cert(0x10681c800) s: Sectigo Public Server Authentication CA DV R36 i: Sectigo Public Server Authentication Root R46>", "<cert(0x10681d200) s: Sectigo Public Server Authentication Root R46 i: Sectigo Public Server Authentication Root R46>" )}}, _NSURLErrorRelatedURLSessionTaskErrorKey=( "LocalDataTask <4E41098F-6B71-4FB8-8753-78DD32961812>.<1>" ), _kCFStreamErrorCodeKey=-9802, _NSURLErrorFailingURLSessionTaskErrorKey=LocalDataTask <4E41098F-6B71-4FB8-8753-78DD32961812>.<1>, NSURLErrorFailingURLPeerTrustErrorKey=<SecTrustRef: 0x281cf4460>, NSLocalizedDescription=An SSL error has occurred and a secure connection to the server cannot be made.}

我的完整报错信息： Task &lt;0568A3A0-A40C-42A8-9491-2FC52D71EFFF&gt;.&lt;4&gt; finished with error [-1009] Error Domain=NSURLErrorDomain Code=-1009 "似乎已断开与互联网的连接。" UserInfo={_kCFStreamErrorCodeKey=50, NSUnderlyingError=0x107db5590 {Error Domain=kCFErrorDomainCFNetwork Code=-1009 "(null)" UserInfo={_kCFStreamErrorDomainKey=1, _kCFStreamErrorCodeKey=50, _NSURLErrorNWResolutionReportKey=Resolved 0 endpoints in 1ms using unknown from cache, _NSURLErrorNWPathKey=unsatisfied (Denied over Wi-Fi interface), interface: en0[802.11], ipv4, dns, uses wifi}}, _NSURLErrorFailingURLSessionTaskErrorKey=LocalDataTask &lt;0568A3A0-A40C-42A8-9491-2FC52D71EFFF&gt;.&lt;4&gt;, _NSURLErrorRelatedURLSessionTaskErrorKey=( "LocalDataTask &lt;0568A3A0-A40C-42A8-9491-2FC52D71EFFF&gt;.&lt;4&gt;" ), NSLocalizedDescription=似乎已断开与互联网的连接。, NSErrorFailingURLStringKey=https://sharkserver.dypc.top/shark_user/login, NSErrorFailingURLKey=https://sharkserver.dypc.top/shark_user/login, _kCFStreamErrorDomainKey=1} 请求失败：似乎已断开与互联网的连接。 以下是问题的具体描述 我的A手机（15pro max 版本18,6,1） 使用xcode直接在A手机上运行我的程序 尝试发起post请求的时候得到了该报错。 我做了以下尝试 1.检查了A手机网络，一切正常，浏览器和其他app均可正常访问网络 2.检查了A手机上我的app权限，确认我因为为我的程序打开了无线网络和蜂窝流量 3.重启A手机，还原A手机网络设置，还原A手机所有设置，重启mac电脑 以上做法均无效，依旧报上面的错误 4.然后我尝试使用B手机(iPhone13 版本18.5)安装该程序 ，B手机可以正常运行并成功发起post请求，证明我的代码没有问题 5.我将代码上传至testfight 然后使用A手机下载testfight里的该程序 ，程序可以成功发起post请求没有任何错误，我再次使用xcode运行该程序到真机，又得到了Code=-1009错误 无法发起post请求

The Wi‑Fi Alliance’s Wi‑Fi Aware data communication uses IPv6. However, in Chapter 53 “Wi‑Fi Aware” of the Accessory Design Guidelines for Apple Devices, Release R26, it is stated that “The Neighbor Discovery Protocol (NDP) for IPv6 address resolution is not supported.” This has caused confusion among developers: Does Apple’s Wi‑Fi Aware data communication actually use IPv6? What is the impact of “The Neighbor Discovery Protocol (NDP) for IPv6 address resolution is not supported” in Apple’s implementation?

I am building a NEPacketTunnelProvider, and in its configuration I set a SecIdentity persistent reference. That reference is passed to the tunnel provider but when I try to use it there, I get an errSecInteractionNotAllowed error. The private key for that identity is protected by .userPresence. If I remove the protection, the network extension can access the identity and the private key. Is there any way that a VPN network extension can use a keychain item protected by .userPresence?

I am running a full-tunnel VPN using a Packet Tunnel Provider. During VPN setup, we configure DNS setting with specific DNS servers for all domains to be used by the tunnel. However, our project requires DNS resolution for every domain from both the VPN-provided DNS servers and the ISP’s DNS servers. When I attempt to use c-ares or other third-party libraries to resolve domains via the ISP DNS servers, these libraries only detect and use the VPN DNS servers instead. As a result, all queries fail. Is there a way on iOS to programmatically determine the ISP DNS servers while a full-tunnel VPN is active, or a system API that allows DNS queries to be explicitly resolved using the ISP’s DNS servers?

I am creating a VoIP application. The VoIP application needs to send and receive RTP packets at 20 ms intervals. The application calls sendto() of the Socket API at 20 ms intervals, but the iPhone buffers the send data inside iOS and then sends RTP packets in batches at 1 second intervals. (I captured the sned packets of iPhone with rvctl and confirmed this. please reffer "Sending at 1 second intervals.png" for detail) Similarly, other devices send RTP packets to the iPhone at 20 millisecond intervals, but the iPhone only receives them at 1 second intervals. (please reffer "Receiving at 1 second intervals.png" for detail) Why is this? If the cause of the delay is in the Wi-Fi protocol and the cause can be found from sysdiagnose, please tell me the search key for sysdiagnose that shows the cause of the delay and the meaning of the corresponding log. I uploaded sysdiagnose and result of lan capture to below. [sysdiagnose and lan capture] https://drive.google.com/file/d/149OPmePAF4hnZj6NeSnKc5NizfitPQDS/view?usp=sharing And, the start and end times, packet number in the lan capture of the call shown in the png example are below Start time; 13:57:22.349608/packet number; 948 End time; 13:57:37.482874/packet number; 2583

Is Apple's Wi-Fi Aware certified by the Wi-Fi Alliance? Is there any non-compliance of Apple's Wi-Fi Aware with the Wi-Fi Alliance standards? Does Apple have a roadmap to switch AWDL to Wi-Fi Aware? Does Apple have plans to adopt Wi-Fi Aware in Mac computers?

If I was to build an app that opened a web server at local host on a random port that resolved subdomains for local host at that port, but there was no certificate authority, signed certificate available to provide HTTPS security, would this be in violation of apples ATS policy

Hi everyone, I’m currently developing a macOS app that is distributed via a DMG file on our website. The app includes an App Extension (appex) for Network Extension functionality. I’m wondering if distributing via DMG on the web requires the app extension to be implemented as a System Extension instead of an App Extension. Is it necessary to migrate to System Extension for web-based DMG distribution, or can I continue using App Extension as is? Any insights or recommendations would be greatly appreciated. Thank you!

When running my app with Xcode16.4, it crashed with the error: dyld[1045]: Symbol not found: ___res_9_state Referenced from: <8B329554-5BEF-38D0-BFCD-1731FA6120CB> /private/var/containers/Bundle/Application/00C941BA-E397-4D0B-B280-E75583FF2890/***.app/***.debug.dylib Expected in: <7D74C679-8F55-3A01-9AA2-C205A4A19D3E> /usr/lib/libresolv.9.dylib The ___res_9_state related code in my app is: let state = __res_9_state() res_9_ninit(state) var servers = [res_9_sockaddr_union](repeating: res_9_sockaddr_union(), count: Int(MAXNS)) let found = Int(res_9_getservers(state, &servers, Int32(MAXNS))) res_9_nclose(state) if found > 0 { return Array(servers[0..<found]).filter() { $0.sin.sin_len > 0 } } else { return [] } Previously, __res_9_state() could run normally in Xcode 16.1 How to fix this problem?

Hello, I'm working on a Transparent Proxy and when the proxy is being stopped, I'm stopping all the flows by calling flow.closeWriteWithError(POSIXError(.ECANCELED)) flow.closeReadWithError(POSIXError(.ECANCELED)) Then all the flows are deallocated. When deallocating the flow the crash occurs: OS Version: macOS 14.1.2 (23B92) Exception Type: EXC_BREAKPOINT (SIGTRAP) Exception Codes: 0x0000000000000001, 0x000000018c2ef704 Termination Reason: Namespace SIGNAL, Code 5 Trace/BPT trap: 5 Terminating Process: exc handler [553] Thread 32 Crashed:: Dispatch queue: <my dispatch queue> 0 CoreFoundation 0x18c2ef704 CF_IS_OBJC + 76 1 CoreFoundation 0x18c23f61c CFErrorGetDomain + 32 2 libnetworkextension.dylib 0x19fe56a00 flow_error_to_errno + 28 3 libnetworkextension.dylib 0x19fe56920 flow_handle_pending_write_requests + 216 4 libnetworkextension.dylib 0x19fe5667c __NEFlowDeallocate + 380 5 CoreFoundation 0x18c2efe28 _CFRelease + 292 6 NetworkExtension 0x19d208390 -[NEAppProxyFlow dealloc] + 36 Is there any way to debug what is happening and if it's related to closing the flow with POSIXError? Thank you

We are trying to connect to Webdav. The file server is in the same network. So when we try to connect, the local network permission pop-up is displayed. If the input information is incorrect in the first login attempt when this permission pop-up is displayed, After that, even after fixing the normal connection, we cannot connect or log in with the message "NSURLErrorDomain Code=-1009", "Internet connection is offline." This symptom seems to persist even after rebooting or deleting and deleting the app in the actual distributed app. If you re-debug while debugging Xcode, you can connect normally. (If you do not re-debug, it fails even if you enter the connection information normally.) And it affects local connection, so you cannot connect to any local network server such as SMB or FTP. Also, you cannot browse the server list within the local network. (SMB) Is there a way to initialize the local network status within the app to improve this phenomenon? I tried turning Airplane mode ON/OFF, turning Wi-Fi ON/OFF, and turning local network permissions ON/OFF, but it did not work. Also, this phenomenon seems to be a Sandbox for each app. When connecting to the same local server from an app installed on the same iPhone/iPad device, the above phenomenon does not occur if the first connection is successful. ** Summary ** If you fail to connect to a server on your local network, then you will continue to fail to connect to the local server. This happens even when local network permissions are allowed. The error message is NSURLErrorDomain Code=-1009 The current device is an iPhone device running iOS 18.1.1.

I need to run multiple, slightly different copies of a modeling tool, which all need access to a model repository on a different machine. Security Settings -> Network tends to pick one modeling tool (and unfortunately the wrong one) for permission, but the dialog offers no way to add the other copies manually. Where can I configure the permission on low level. [macOS Sequoia 15.6.1]

Hello, I have encountered an issue with an iPhone 15PM with iOS 18.5. The NSHTTPCookieStorage failed to clear cookies, after clearing them, I was still able to retrieve them. However, on the same system NSHTTPCookie *cookie; NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage]; for (cookie in [storage cookies]) { [storage deleteCookie:cookie]; } NSArray *cookies = [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookiesForURL:[[self url] absoluteURL]]; // still able to get cookies,why???

I haven’t been able to get this to work at any level! I’m running into multiple issues, any light shed on any of these would be nice: I can’t implement a bloom filter that produces the same output as can be found in the SimpleURLFilter sample project, after following the textual description of it that’s available in the documentation. No clue what my implementation is doing wrong, and because of the nature of hashing, there is no way to know. Specifically: The web is full of implementations of FNV-1a and MurmurHash3, and they all produce different hashes for the same input. Can we get the proper hashes for some sample strings, so we know which is the “correct” one? Similarly, different implementations use different encodings for the strings to hash. Which should we use here? The formulas for numberOfBits and numberOfHashes give Doubles and assign them to Ints. It seems we should do this conversing by rounding them, is this correct? Can we get a sample correct value for the combined hash, so we can verify our implementations against it? Or ignoring all of the above, can we have the actual code instead of a textual description of it? 😓 I managed to get Settings to register my first attempt at this extension in beta 1. Now, in beta 2, any other project (including the sample code) will redirect to Settings, show the Allow/Deny message box, I tap Allow, and then nothing happens. This must be a bug, right? Whenever I try to enable the only extension that Settings accepted (by setting its isEnabled to true), its status goes to .stopped and the error is, of course, .unknown. How do I debug this? While the extension is .stopped, ALL URL LOADS are blocked on the device. Is this to be expected? (shouldFailClosed is set to false) Is there any way to manually reload the bloom filter? My app ships blocklist updates with background push, so it would be wasteful to fetch the filter at a fixed interval. If so, can we opt out of the periodic fetch altogether? I initially believed the API to be near useless because I didn’t know of its “fuzzy matching” capabilities, which I’ve discovered by accident in a forum post. It’d be nice if those were documented somewhere! Thanks!!

Before iOS16, we can use https://developer.apple.com/documentation/coretelephony/ctcarrier But after iOS this is deprecated and has no replacement. There are some discussions on it, eg. https://developer.apple.com/forums/thread/714876 https://developer.apple.com/forums/thread/770400 Now I asked AI, then it provided this solution, to check the serviceCurrentRadioAccessTechnology, so it this ok to check the SIM card status? var hasSIMCard = false let info = CTTelephonyNetworkInfo() if let rat = info.serviceCurrentRadioAccessTechnology, rat.values.contains(where: { !$0.isEmpty }) { hasSIMCard = true. // has RAT } BTW, I can see a lot of changes in the Core Telephony framework. https://developer.apple.com/documentation/coretelephony 1.isSIMInserted https://developer.apple.com/documentation/coretelephony/ctsubscriber/issiminserted A Boolean property that indicates whether a SIM is present. iOS 18.0+ iPadOS 18.0+ This value property is true if the system finds a SIM matching the Info.plist carrier information (MCC / MNC / GID1 / GID2). Is this ok to check SIM insert status, this seems must preconfig some info in the info.plist. 2.iOS26 provide CTCellularPlanStatus https://developer.apple.com/documentation/coretelephony/ctcellularplanstatus Can I use this to check SIM status?

Hi, We're receiving data via centralManager.centralManager.scanForPeripherals, with no options or filtering (for now), and in the func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) callback, we get advertisementData for each bluetooth device found. But, I know one of my BLE devices is sending an Eddystone TLM payload, which generally is received into the kCBAdvDataServiceData part of the advertisementData dictionary, but, it doesn't show up. What is happening however (when comparing to other devices that do show that payload), is I've noticed the "isConnectable" part is false, and others have it true. Technically we're not "connecting" as such as we're simply reading passive advertisement data, but does that have any bearing on how CoreBluetooth decides to build up it's AdvertisementData response? Example (with serviceData; and I know this has Eddystone TLM) ["kCBAdvDataLocalName": FSC-BP105N, "kCBAdvDataRxPrimaryPHY": 1, "kCBAdvDataServiceUUIDs": <__NSArrayM 0x300b71f80>( FEAA, FEF5 ) , "kCBAdvDataTimestamp": 773270526.26279, "kCBAdvDataServiceData": { FFF0 = {length = 11, bytes = 0x36021892dc0d3015aeb164}; FEAA = {length = 14, bytes = 0x20000be680000339ffa229bbce8a}; }, "kCBAdvDataRxSecondaryPHY": 0, "kCBAdvDataIsConnectable": 1] Vs This also has Eddystone TLM configured ["kCBAdvDataLocalName": 100FA9FD-7000-1000, "kCBAdvDataIsConnectable": 0, "kCBAdvDataRxPrimaryPHY": 1, "kCBAdvDataRxSecondaryPHY": 0, "kCBAdvDataTimestamp": 773270918.97273] Any insight would be great to understand if the presence of other flags drive the exposure of ServiceData or not...