When I used the iPhone 11 to scan the wifi connection, the system reported an error,   ‘’’ let config = NEHotspotConfiguration(ssid: name, passphrase: passwd, isWEP: false) let manager = NEHotspotConfigurationManager() manager.apply(config) { error in      } ’’’ NEHotspotConfigurationErrorDomain Code=8 “internal error.” , the only thins that fixes this issue it restarting the iPhone. What is the reason for this and how to solve it? Reference link: https://developer.apple.com/forums/thread/111638 https://cloud.tencent.com/developer/ask/sof/114654981

Title: Loss of Internet Connectivity on iOS Device When Packet Tunnel Crashes Feedback ticket: https://feedbackassistant.apple.com/feedback/14162605 Product: iPhone 12 Version: iOS - 17.5.1 Configuration: NETunnelProviderManager Configuration Description: We are developing an iOS VPN client and have configured our packet tunnel provider according to Apple's guidelines. The configuration is as follows: includeAllNetworks = YES excludeLocalNetworks = NO enforceRoutes = NO This setup works as expected when the VPN successfully connects. However, we encounter a blocker issue where the device loses internet connectivity if the packet tunnel crashes. Steps to Reproduce: Configure the NETunnelProviderManager with the above settings. Connect the VPN, which successfully establishes a connection. Verify that resources are accessible and internet connectivity is functional. Packet tunnel to crash unexpectedly.Observe that the NE process (Packet Tunnel) restarts automatically, as expected and attempts to reconnect the VPN; however, the device now lacks internet connectivity, preventing VPN reconnection. Try accessing resources using Safari or any other internet-dependent app, resulting in an error indicating the device is not connected to the internet. Actual Results: The device loses internet connectivity after the packet tunnel crashes and fails to regain it automatically, preventing the VPN from reconnecting. Expected Results: The device should maintain internet connectivity or recover connectivity to allow the VPN to reconnect successfully after the packet tunnel process restarts. Workaround - iPhone device needs a restart to regain internet connectivity .

I'm writing an LDAP Browser app using SwiftUI. I tested my LDAP code using a command line app that uses the exact same libraries and it successfully connects to my LDAP server over a TLS connection. I did need to install the CA cert into the system keychain. The SwiftUI version, using the exact same code and parameters returns an "Unknown CA" error. It works fine without TLS. Can anyone explain why certificate validation is different for a GUI app?

Hello. I would like to develop an application that sends SSH commands via my phone to the server. I know that applications of this type exist, but they are not suitable for my use as a blind person who uses a screen reader. I hope you can help me find libraries that will assist me in development, or ready-made, open-source projects that I can develop and modify if necessary. Thank you in advance.

Hi everyone, I'm developing a visionOS app that allows users to download large video files (similar to a movie download experience, with each file being around 10 GB). I've successfully implemented the core video download functionality using URLSession, and everything works as expected while the app is active. Now, I’m looking to support background downloading. Specifically, I want users to be able to start a download and then leave the app (e.g., switch apps or return to the home screen) while the download continues in the background. Additionally, I’d like to confirm a specific scenario: If the user starts a download, then removes the headset (keeping the device turned on and connected to power), will the download continue in the background? Or does visionOS suspend the app or downloads in this case? I’m considering using a background URLSessionConfiguration (as done in iOS/macOS) to enable this behavior, but I’m not sure if it behaves the same way on visionOS or if there are special limitations or best practices when handling large downloads on this platform. Any insights or official guidance would be greatly appreciated! Thanks!

Hi , I want to obtain detailed information about the cellular network. Please guide me on how I can access these values. If there are any partnership programs available for this, I am ready to participate 1. cell identity 2. Lcellid 3. ratType 4. enb 5. snr 6. ARFCN 7. TA 8. cqi 9. signalStrength (RSSI) 10. tac (Tracking area code) 11. BSIC 12. lac id 13. MCC code (Restricted on some devices) 14. MNC code 15. PSC (Primary Scrambling code) 16. Arbitrary Signal Strength (ASU) 17. BER 18. RSSI 19. Signal Quality

On iOS 18.3, I noted that partition "HTTPCookiePropertyKey: StoragePartition" is not observed to be set for cookies returned from the wkwebview cookie store. Now on 18.4 beta 4 we are now seeing those same cookies are populated with a partition property. Is there documentation for this change? Is it intended to be suddenly populated in 18.4? Now that partition property is set, HTTPCookieStorage.shared.cookies(for: serverUri) doesn't seem to return the expected cookies correctly. For context, we are using the cookies extracted from wkwebview, setting them in HTTPCookieStorage.shared and using URLSession to make network calls outside the webivew. Works fine once I forcefully set partition on the cookie to nil. More details on what the cookie looks like here: https://feedbackassistant.apple.com/feedback/16906526 Hopefully this is on your radar?

Dear Apple Team, I am facing an issue with UDP networking in my watchOS app for duplex audio streaming using NWConnection. I have already added the necessary capabilities, including background mode for audio, to ensure smooth operation. Issue Details: The UDP connection works fine on the simulator since it uses macOS networking and allows low-level access. However, on a real Apple Watch (running watchOS 10), the connection remains in a "waiting" state and fails with Error 50. I am aware of Technical Note TN3135 regarding low-level networking on watchOS, but even after following these guidelines, the issue persists. Questions: Does watchOS impose additional restrictions on UDP networking compared to iOS/macOS? Are there any specific entitlements or configurations required to allow UDP connections on a real Apple Watch? Is there a workaround or debugging method to get more insights into why the connection fails? I would appreciate any guidance or recommendations on resolving this issue.

I am developing an Xcode app with a job feed, with profile view, with chat eg. I fetch using federatet queries to my microservices thru Apollo Router. Infront of the Apollo Router i Have a Kong that adds a X user ID, that the microservices use for personalized feed and other user info. The info is stored with SwiftData. My thought is that i should add a better way of controlling when i need to fetch. I have a “lastupdateAPI” with different entities (profile, profile picture eg). So when nothing has changed we do not fetch. But rather then using a own API for this, isnt ETag better? Or is it any other recommendations with Xcode Swiftui. Good strategies for not fetching what i already have?

Our app supports live streaming (RTSP, RTMP, WebRTC) functionality. After updating to the 18.5 Developer Beta version, we’ve encountered an issue where streaming over LTE is not working for customers using SKT (SK Telecom) as their carrier. Upon investigation, it seems that a similar issue might be occurring with a streaming service app called "SOOP." I would appreciate it if you could share any information regarding this bug. Thank you.

It doesn’t seem like there’s any high level, first-party documentation on how to use what is the recommended API for executing networking logic that you otherwise wouldn’t use URLSession for; which is a lot of things. There’s a sample app, and docs on how to choose the right network API in general, but apparently no high level API docs for Network.framework itself. Am I missing something? How do people learn to use this? Know which classes to use? Know the various ways it can be configured?

Here's what the documentation says https://developer.apple.com/documentation/networkextension/maintaining-a-reliable-network-connection Confirm that your NEAppPushProvider implementation doesn’t create a retain cycle with itself. After you call the completionHandler that the system passes to stop(with:completionHandler:), the Network Extension framework releases your NEAppPushProvider instance. This instance typically deallocates from memory when released, but if the instance has a retain cycle with itself, it fails to deallocate and wastes memory. Failure to deallocate can also cause the system to have two or more instances of your push provider, leading to inconsistent behavior. Use Instruments or add a logging statement to deinit to verify that your NEAppPushProvider deinitializes when expected. I observe that when I turn off the wifi, the AppPushProvider subclass fully deinitializes. But when I call removeFromPreferences on the NEAppPushManager from the app, it calls stop() on my AppPushProvider subclass, but it does not initialize. Should I be alarmed by this behavior? Will this cause a memory leak? Will this cause multiple Extension/AppPushProviders to be operating concurrently? For testing, I've removed everything except for logs and some singleton calls. No closures capturing self, and no strong references of self being passed anywhere. I am also not using the debugger, and am using the console to debug.

Hi everyone, I developed an Android version of a VPN app built with Flutter using OpenVPN, and it works perfectly on Android. However, when porting it to iOS, I’ve encountered an issue: the app connects successfully but then automatically disconnects when tested via TestFlight. We’ve already added all the necessary network extensions. Despite this, we decided to submit the app to the App Store. It’s been five days now, and the app is still 'Waiting for Review.' Could anyone share their experience deploying and working on an iOS version of a VPN app? I’d really appreciate your insights!

I am trying to programmatically block some egress and ingress connections using bsd packet filters. My program writes rules in a file and this file is loaded using an anchor in /etc/pf.conf (main ruleset) . Rules work as intended. But when there is network change like turn on/off wifi , and change in wifi nw the main ruleset is getting flushed and i have to reapply (pfctl -q -f /etc/pf.conf) to get the rules back in place. Looking for guidance to keep the main ruleset intact irrespective of system changes.

I'm using NETransparentProxyProvider to intercept udp sockets using the method handleNewUDPFlow. An application may create a UDP socket and set the DONTFRAG using setsockopt method setsockopt(s, IPPROTO_IP, IP_DONTFRAG, &val, sizeof(val)) In this case, do I have option in this case, to get the connection settings inside the callback (void)handleNewUDPFlow:(NEAppProxyUDPFlow *)flow initialRemoteEndpoint:(NWEndpoint *)remoteEndpoint; So in this case, I would be able to create the outgoing socket with the exact same characteristics, after the original app socket got intercepted by my proxy provider ?

Could anyone teach me how to ask iOS 18 to have a prompt during set-up process of a new APP if user accidentally turns off Local Network ?

Is it possible using the network framework to retrieve the list of certificates presented by the host alone, and not the reconstructed chain assembled by the system? For example, in OpenSSL one can call SSL_get_peer_cert_chain which will return exactly this - a list of the certificates presented by the server. This is useful for when you may want to manually reconstruct the chain, or if the server is misconfigured (for example, is missing an intermediate cert). Is something like this possible with the network framework? If I connect to a host that I know only returns 1 certificate, the trust ref already has the reconstructed chain by the time my code is called: sec_protocol_options_set_verify_block(tlsOptions.securityProtocolOptions, { metadata, trustRef, verifyComplete in let trust = sec_trust_copy_ref(trustRef).takeRetainedValue() let numberOfCertificates = SecTrustGetCertificateCount(trust) // Returns 3 even though the server only sent 1

I've had no problem running my app in a simulator or on a device, but today my app is failing on a URLRequest to my local machine (in a sim). From the same simulator I can go to Safari and manually enter the URL that the app is using (and that appears in the error message), and it works fine. I think there was a recent Xcode update; did something change in this regard?

Hi Dev Forums and Quinn "The Eskimo!", Short version Is there sample NWConnection code available that behaves in a similar way to the higher level URLSession and URLRequest APIs? Long version I have not been able to make this question get past the "sensitive language filter" on the dev forums. I figured it might be 'fool' or 'heck', or the X link, but removing each of those still triggers the sensitive language filter. Please see this gist: https://gist.github.com/lzell/8672c26ecb6ee1bb26d3aa3c7d67dd62 Thank you! Lou Zell

We have a requirement to create a production quality application that also acts as HTTPS server for certain communication. The preference is for the server to support HTTP/1.1, HTTP/2 and HTTP/3 communication asynchronously, though not mandatory to support all the HTTP versions. Wanted to get the guidance, on which stack should be used, that is most reliable and that gives the maximum long term compatibility, sustainability and reliability. What is the recommended 'in-built' or 'available by default' stack on Apple Platform ? For HTTPS on HTTP/1.1 with synchronous mode operations ? For HTTPS on HTTP/1.1 with asynchronous mode operations ? For HTTPS on HTTP/2 with synchronous mode operations ? For HTTPS on HTTP/2 with asynchronous mode operations ? For HTTPS on HTTP/3 with asynchronous mode operations ? For HTTPS on HTTP/1.1 + HTTP/2 with synchronous mode operations ? For HTTPS on HTTP/1.1 + HTTP/2 with asynchronous mode operations ? For HTTPS on HTTP/1.1 + HTTP/2 + HTTP/3 with asynchronous mode operations ? What the generally recommended server stack that a typical application uses whether 'in-built' or 'available by default on Apple ' or 'not-available by default on Apple' stack. From the available stacks , we tried to evaluate the below stacks: https://opensource.apple.com/projects/swiftnio/ : We understand that while it’s not preinstalled as part of Apple's OSes, it is an official Swift package supported by Apple and can easily be added to your project. At the moment it supports HTTP/1.1 and HTTP/2. The link https://github.com/apple/swift-nio/issues/1730says that HTTP/3 will get added in the future. Is there any other HTTPS stack (built-in or third-party) that is recommended to the used on Apple's platform ? Our application is expected to be working on macOS, iOS, iPadOS, tvOS and watchOS. We understand that macOS also includes Apache HTTPD server. As our application is not primarily a Web Server (and also supports other protocols both in client and server mode), it looks integrating HTTPS directly into the application using a lightweight HTTP library with SSL/TLS support is a better option, in place of Apache HTTPD. From the document we know that swift-nio uses BoringSSL (swift-nio-ssl) which is prepackaged along with the swift-nio library, and it does not use the default Secure Transport. What is the reason being not using Secure Transport ? Now does it become the responsibility of the application using swift-nio to take care of updating BoringSSL with the patches.