Hi! When starting my app which is loading a Content Filter Network Extension I am getting the following error :
sysextd: <bundle_id> : extension failed category property check: extensions belonging to the com.apple.system_extension.endpoint_security category require a later version of operating system to launch
...
OSSystemExtensionRequest didFailWithError for <bundle_id> : The operation couldn’t be completed. (OSSystemExtensionErrorDomain error 9.)
This is happening on a VM running Sonoma 14.7.8. I upgraded the VM to the latest available OS and the system extension is loading just fine.
My question is : reading the documentation, I understand that the Network Extensions are supported starting with macOS 10.10+. Why is this not working on my Sonoma 14.7.8 VM?
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I'm having a lot of trouble just getting a basic network extension startup, I have a main application that creates the configuration and requests the app extension based network extension to launch.
The network extension implements a NEPacketTunnelProvider and the application doesn't receive an error when starting the tunnel but when I inspect the networkextension system logs, I keep getting errors and the network extension itself doesn't appear to start nor does it log anything.
log stream --predicate 'subsystem == "com.apple.networkextension"'
neagent: (NetworkExtension) [com.apple.networkextension:] Extension request with extension $(BUNDLE_ID) started with identifier (null)
neagent: (NetworkExtension) [com.apple.networkextension:] Failed to start extension $(BUNDLE_ID): Error Domain=NSCocoaErrorDomain Code=4097 "connection to service named $(BUNDLE_ID)" UserInfo={NSDebugDescription=connection to service named $(BUNDLE_ID)}
nesessionmanager: [com.apple.networkextension:] Validation failed - no audit tokens
nesessionmanager: [com.apple.networkextension:] NEVPNTunnelPlugin($(BUNDLE_ID)[inactive]): Validation of the extension failed
The network extension is written in Objective-C as it needs to integrate with another language. It's not entirely clear what kind of executable the network extension is meant to be, is it meant to have a main entrypoint, or is it supposed to be a shared library / bundle?
I am learning how to use DNS-SD from swift and have created a basic CLI app, however I am not getting callback results.
I can get results from cli. Something I am doing wrong here?
dns-sd -G v6 adet.local
10:06:08.423 Add 40000002 22 adet.local. FE80:0000...
dns-sd -B _adt._udp.
11:19:10.696 Add 2 22 local. _adt._udp. adet
import Foundation
import dnssd
var reference: DNSServiceRef?
func dnsServiceGetAddrInfoReply(ref: DNSServiceRef?, flags: DNSServiceFlags, interfaceIndex: UInt32, errorCode: DNSServiceErrorType, hostname: UnsafePointer<CChar>?, address: UnsafePointer<sockaddr>?, ttl: UInt32, context: UnsafeMutableRawPointer?) {
print("GetAddr'd")
print(hostname.debugDescription.utf8CString)
print(address.debugDescription.utf8CString)
}
var error = DNSServiceGetAddrInfo(&reference, 0, 0, DNSServiceProtocol(kDNSServiceProtocol_IPv6), "adet.local", dnsServiceGetAddrInfoReply, nil)
print("GetAddr: \(error)")
func dnsServiceBrowseReply(ref: DNSServiceRef?, flags: DNSServiceFlags, interfaceIndex: UInt32, errorCode: DNSServiceErrorType, serviceName: UnsafePointer<CChar>?, regType: UnsafePointer<CChar>?, replyDomain: UnsafePointer<CChar>?, context: UnsafeMutableRawPointer?) {
print("Browsed")
print(serviceName.debugDescription.utf8CString)
print(replyDomain.debugDescription.utf8CString)
}
error = DNSServiceBrowse(&reference, 0, 0, "_adt._udp", nil, dnsServiceBrowseReply, nil)
print("Browse: \(error)")
Foundation.RunLoop.main.run()
Info.plist
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>NSLocalNetworkUsageDescription</key>
<string>By the Hammer of Grabthor</string>
<key>NSBonjourServices</key>
<array>
<string>_adt._udp.</string>
<string>_http._tcp.</string>
<string>_http._tcp</string>
<string>_adt._udp</string>
</array>
</dict>
</plist>
I am trying to activate an application which sends my serial number to a server. The send is being blocked. The app is signed but not sandboxed.
I am running Sequoia on a recent iMac. My network firewall is off and I do not have any third party virus software. I have selected Allow Applications from App Store & Known Developers.
My local network is wifi using the eero product. There is no firewall or virus scanning installed with this product.
Under what circumstances will Mac OS block outgoing internet connections from a non-sandboxed app? How else could the outgoing connection be blocked?
Topic:
App & System Services
SubTopic:
Networking
I've built a VPN app that is based on wireguard on macOS (I have both AppStore ver. and Developer ID ver). I want to achieve split tunneling function without changing the system route table.
Currently, I'm making changes in PacketTunnelProvider: NEPacketTunnelProvider. It has included/excluded routes that function as a split tunnel, just that all changes are immediately reflected on the route table: if I run
netstat -rn
in terminal, I would see all rules/CIDRs I added, displayed all at once. Since I have a CIDR list of ~800 entries, I'd like to avoid changing the route table directly.
I've asked ChatGPT, Claude, DeepSeek, .etc. An idea was to implement an 'interceptor' to
intercept all packets in packetFlow(_:readPacketsWithCompletionHandler:), extract the destination IP from each packet, check if it matches your CIDR list, and either reinject it back to the system interface (for local routing) or process it through your tunnel.
Well, LLMs could have hallucinations and I've pretty new to macOS programming. I'm asking to make sure I'm on the right track, not going delusional with those LLMs :) So the question is, does the above method sounds feasible? If not, is it possible to achieve split tunneling without changing the route table?
Dear Apple:
We encountered a problem when using the Wi-Fi connection feature. When calling the Wi-Fi connection interface NEHotspotConfigurationManager applyConfiguration, it fails probabilistically. After analyzing the air interface packets, it appears that the Apple device did not send the auth message. How should we locate this issue? Are there any points to pay attention to when calling the Wi-Fi connection interface? Thanks
I had noticed that my slaac address changed between one beta and the other, but wasn't sure. Now with the RC 15.4 RC (24E247) I made point of preserving the info before updating from the previous beta.
What I noticed is that not only the slaac address changes, but also the my ether address, even though I have it on Fixed in the settings.
Is it expected that the ether, and the slaac, not be rotated after a OS update?
Topic:
App & System Services
SubTopic:
Networking
I used the SSH approach method in the post https://developer.apple.com/forums/thread/703234 to add TLS trust for the local accessory device with a self signed certificate.
In the Info.plist, I disabled App Transport Security for local networking by setting the NSAllowsLocalNetworking property, as mentioned in the post.
However, I am still encountering the following SSL error:
ATS failed system trust
Connection 3: system TLS Trust evaluation failed(-9802)
Connection 3: TLS Trust encountered error 3:-9802
Connection 3: encountered error(3:-9802)
Task <9432C2C5-C7A1-44E4-95CC-2AFA49D6C501>.<1> HTTP load failed, 0/0 bytes (error code: -1200 [3:-9802])
Task <9432C2C5-C7A1-44E4-95CC-2AFA49D6C501>.<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
In the code everything is working fine. The certificates are compared and
CFEqual(expected, actual), is returning true. Also in urlSession delegate method , the
return completionHandler(.useCredential, credential)
is returned.
When I disable ATS in Info.plist by setting NSAllowsArbitraryLoads, it works fine.
I have the following questions:
Should I disable ATS by setting NSAllowsArbitraryLoads along with setting ?
Instead of accepting the server certificate for the first time and saving it in the app, why can’t we embed the self-signed certificate in the app directly and use it for comparison?
Hi folks,
I would like to ask for clarification regarding Local Network Policy. I found 2 cases where I think the behaviour differs from the documentation.
1. Use case
In a CI environment, we have multiple services (LaunchAgents) which require Local Network Access. We are fine by manually approving the Local Network Permission once (per service), but we also require these services to be able to self-update. Self update results in downloading the a binary with an (obviously) different UUID, which seems to result in re-triggering the Local Network Consent prompt. Strange thing: If I don't click either buttons (Allow of Reject), just restart macOS, it will result in an enabled entry in Privacy & Security > Local Network.
I read a reply somewhere on this forum by an Apple engineer that the approval process is a mix of Bundle ID + UUID + other components, so I would expect a new binary with the same properties (but different UUID) to be already whitelisted.
Is this behaviour intended?
2. Use Case
Given the first issue, I decided to do this in the "right way".
I was happy to read this sentence in the documentation:
If you ship a launchd agent that’s not installed using SMAppService, make macOS aware of the responsible code by setting the AssociatedBundleIdentifiers property in your launchd property list.
I have a properly setup (and code signed) Application, for which I have enabled Local Network permission in Privacy & Security.
I have a standalone LaunchAgent, which runs a long running binary from a user directory. The agent is managed with launchd, and in this sense it is "independent" from the main Application Bundle. I have setup AssociatedBundleIdentifiers in the Agent plist, to associate it with the Application. The TeamIdentifier of the 2 binaries are the same. Based on the documentation, this should be enough for my agent to signal macOS that the responsible code is the Application Bundle (which is already enabled from Local Network POV).
Instead, once the LaunchAgent starts, the Local Network Consent popup appears for the binary. I would expect the Application to be the responsible code, thus no more Consent popup.
Is this behaviour intended?
I need this service to run as user, so I cannot just circumvent the Consent popup by running as a Daemon or Root. Nor I would like to manage the Agent with ServiceManagement. What do you guys think, have I misunderstood the documentation?
I'm using NWBrowser to search for a server that I hosted. The browser does find my service but when it tries to connect to it, it gets stuck in the preparing phase in NWConnection.stateUpdateHandler. When I hardcode the local IP address of my computer (where the server is hosted) into NWConnection it works perfectly fine and is able to connect.
When it gets stuck in the preparing phase, it gives me the warnings and error messages in the image below. You can also see that the service name is correct and it is found.
I have tried _http._tcp and _ssh._tcp types and neither work.
This is what my code looks like:
func findServerAndConnect(port: UInt16) {
print("Searching for server...")
let browser = NWBrowser(for: .bonjour(type: "_ssh._tcp", domain: "local."), using: .tcp)
browser.browseResultsChangedHandler = { results, _ in
print("Found results: \(results)")
for result in results {
if case let NWEndpoint.service(name, type_, domain, interface) = result.endpoint {
if name == "PocketPadServer" {
print("Found service: \(name) of type \(type_) in domain \(domain) on interface \(interface)")
// Construct the full service name, including type and domain
let fullServiceName = "\(name).\(type_).\(domain)"
print("Full service name: \(fullServiceName), \(result.endpoint)")
self.connect(to: result.endpoint, port: port)
browser.cancel()
break
}
}
}
}
browser.start(queue: .main)
}
func connect(to endpoint: NWEndpoint, port: UInt16) {
print("Connecting to \(endpoint) on port \(port)...")
// endpoint = NWEndpoint(
let tcpParams = NWProtocolTCP.Options()
tcpParams.enableFastOpen = true
tcpParams.keepaliveIdle = 2
let params = NWParameters(tls: nil, tcp: tcpParams)
params.includePeerToPeer = true
// connection = NWConnection(host: NWEndpoint.Host("xx.xxx.xxx.xxx"), port: NWEndpoint.Port(3000), using: params)
connection = NWConnection(to: endpoint, using: params)
connection?.pathUpdateHandler = { path in
print("Connection path update: \(path)")
if path.status == .satisfied {
print("Connection path is satisfied")
} else {
print("Connection path is not satisfied: \(path.status)")
}
}
connection?.stateUpdateHandler = { newState in
DispatchQueue.main.async {
switch newState {
case .ready:
print("Connected to server")
self.pairing = true
self.receiveMessage()
case .failed(let error):
print("Connection failed: \(error)")
self.isConnected = false
case .waiting(let error):
print("Waiting for connection... \(error)")
self.isConnected = false
case .cancelled:
print("Connection cancelled")
self.isConnected = false
case .preparing:
print("Preparing connection...")
self.isConnected = false
default:
print("Connection state changed: \(newState)")
break
}
}
}
connection?.start(queue: .main)
}
I have currently created an app which contains an upload button which when clicked upload health data using HealthKit to an AWS S3 bucket.
Now I want to implement an automatic file upload mechanism which would mean that the app is installed and opened just once - and then the upload must happen on a schedule (once daily) from the background without ever having to open the app again.
I've tried frameworks like NSURLSession and BackgroundTasks but nothing seems to work. Is this use case even possible to implement? Does iOS allow this?
The file is just a few KBs in size.
For reference, here is the Background Tasks code:
import UIKit
import BackgroundTasks
import HealthKit
class AppDelegate: NSObject, UIApplicationDelegate {
let backgroundTaskIdentifier = "com.yourapp.healthdata.upload"
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Register the background task
BGTaskScheduler.shared.register(forTaskWithIdentifier: backgroundTaskIdentifier, using: nil) { task in
self.handleHealthDataUpload(task: task as! BGAppRefreshTask)
}
// Schedule the first upload task
scheduleDailyUpload()
return true
}
// Schedule the background task for daily execution
func scheduleDailyUpload() {
print("[AppDelegate] Scheduling daily background task.")
let request = BGAppRefreshTaskRequest(identifier: backgroundTaskIdentifier)
request.earliestBeginDate = Date(timeIntervalSinceNow: 24*60*60)
do {
try BGTaskScheduler.shared.submit(request)
print("[AppDelegate] Daily background task scheduled.")
} catch {
print("[AppDelegate] Could not schedule daily background task: \(error.localizedDescription)")
}
}
// Handle the background task when it's triggered by the system
func handleHealthDataUpload(task: BGAppRefreshTask) {
print("[AppDelegate] Background task triggered.")
// Call your upload function with completion handler
HealthStoreManager.shared.fetchAndUploadHealthData { success in
if success {
print("[AppDelegate] Upload completed successfully.")
task.setTaskCompleted(success: true)
// Schedule the next day's upload after a successful upload
self.scheduleDailyUpload()
} else {
print("[AppDelegate] Upload failed.")
task.setTaskCompleted(success: false)
}
}
// Handle task expiration (e.g., if upload takes too long)
task.expirationHandler = {
print("[AppDelegate] Background task expired.")
task.setTaskCompleted(success: false)
}
}
}
Hello there,
Starting from iOS 18.4, support was included for QWAC Validation and QCStatements.
Using the official QWAC Validator at: https://eidas.ec.europa.eu/efda/qwac-validation-tool
I was able to check that the domain "eidas.ec.europa.eu" has a valid QWAC certificate. However, when trying to obtain the same result using the new API, I do not obtain the same result.
Here is my sample playground code:
import Foundation
import Security
import PlaygroundSupport
PlaygroundPage.current.needsIndefiniteExecution = true
@MainActor
class CertificateFetcher: NSObject, URLSessionDelegate {
private let url: URL
init(url: URL) {
self.url = url
super.init()
}
func start() {
let session = URLSession(configuration: .ephemeral, delegate: self, delegateQueue: nil)
let task = session.dataTask(with: url) { data, response, error in
if let error = error {
print("Error during request: \(error)")
} else {
print("Request completed.")
}
}
task.resume()
}
nonisolated func urlSession(_ session: URLSession, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
guard let trust = challenge.protectionSpace.serverTrust else {
completionHandler(.cancelAuthenticationChallenge, nil)
return
}
if let certificates = SecTrustCopyCertificateChain(trust) as? [SecCertificate] {
self.checkQWAC(certificates: certificates)
}
let credential = URLCredential(trust: trust)
completionHandler(.useCredential, credential)
}
nonisolated func checkQWAC(certificates: [SecCertificate]) {
let policy = SecPolicyCreateSSL(true, nil)
var trust: SecTrust?
guard SecTrustCreateWithCertificates(certificates as CFArray, policy, &trust) == noErr, let trust else {
print("Unable to create SecTrust")
return
}
var error: CFError?
guard SecTrustEvaluateWithError(trust, &error) else {
print("Trust evaluation failed")
return
}
guard let result = SecTrustCopyResult(trust) as? [String : Any] else {
print("No result dictionary")
return
}
let qwacStatus = result[kSecTrustQWACValidation as String]
let qcStatements = result[kSecTrustQCStatements as String]
print("QWAC Status: \(String(describing: qwacStatus))")
print("QC Statements: \(String(describing: qcStatements))")
}
}
let url = URL(string: "https://eidas.ec.europa.eu/")!
let fetcher = CertificateFetcher(url: url)
fetcher.start()
Which prints:
QWAC Status: nil
QC Statements: nil
Request completed.
Am I making a mistake while using the Security framework? I would greatly appreciate any help or guidance you can provide.
Hi All,
I am currently working on a Network Extension App for MacOS using 3 types of extensions provided by Apple's Network Extension Framework.
Content Filter, App Proxy (Want to get/capture/log all HTTP/HTTPS traffic), DNS Proxy (Want to get/capture/log all DNS records).
Later parse into human readable format.
Is my selection of network extension types correct for the intended logs I need?
I am able to run with one extension:
Main App(Xcode Target1) <-> Content Filter Extension. Here there is a singleton class IPCConnection between App(ViewController.swift) which is working fine with NEMachServiceName from Info.plist of ContentFilter Extension(Xcode Target2)
However, when I add an App Proxy extension as a new Xcode Target3, I think the App and extension's communication getting messed up and App not getting started/Crashing. Here, In the same Main App, I am adding new separate IPCConnection for this extension.
Here is the project organization/folder structure.
MyNetworkExtension
├──MyNetworkExtension(Xcode Target1)
│ ├── AppDelegate.swift
│ ├── Assets.xcassets
│ ├── Info.plist
│ ├── MyNetworkExtension.entitlement
│ | ── Main
│ |-----ViewController.swift
│ └── Base.lproj
│ └── Main.storyboard
├── ContentFilterExtension(Xcode Target2)
│ ├── ContentFilterExtension.entitlement
│ │ ├── FilterDataProvider.swift
│ │ ├── Info.plist
│ │ ├── IPCConnection.swift
│ │ └── main.swift
├── AppProxyProviderExtension(Xcode Target3)
│ ├── AppProxyProviderExtension.entitlement
│ │ ├── AppProxyIPCConnection.swift
│ │ ├── AppProxyProvider.swift
│ │ ├── Info.plist
│ │ └── main.swift
└── Frameworks
├── libbsm.tbd
└── NetworkExtension.framework
Is my Approach for creating a single Network Extension App with Multiple extensions correct or is there any better approach of project organization that will make future modifications/working easier and makes the maintenance better?
I want to keep the logic for each extension separate while having the same, single Main App that manages everything(installing, activating, managing identifiers, extensions, etc).
What's the best approach to establish a Communication from MainApp to each extension separately, without affecting one another? Is it good idea to establish 3 separate IPC Connections(each is a singleton class) for each extension?
Are there any suggestions you can provide that relates to my use case of capturing all the network traffic logs(including HTTP/HTTPS, DNS Records, etc), especially on App to Extension Communication, where my app unable to keep multiple IPC Connections and maintain them separately?
I've been working on it for a while, and still unable to make the Network Extension App work with multiple extensions(each as a new Xcode target).
Main App with single extension is working fine, but if I add new extension, App getting crashed. I suspect it's due to XPC/IPC connection things!
I really appreciate any support on this either directly or by any suggestions/resources that will help me get better understand and make some progress.
Please reach out if in case any clarifications or specific information that's needed to better understand my questions.
Thank you very much
Topic:
App & System Services
SubTopic:
Networking
Tags:
Frameworks
Network Extension
System Extensions
I have an app with lots of networking calls that are currently done through URLSession. We would like to implement the new carried constrained entitlements and begin moving data through the ultra constrained network path for core features of our application. I have successfully implemented the NWPathMonitor to identify when the current network path is ultra constrained and I have been consistently on a physical device in a real world environment.
I'm aware that we will not be able to use URLSession to do this from other posts in this forum like this one. Because of this problem with URLSession I am attempting to fallback to using NWConnection when the current path is ultra constrained. I have setup a NWConnection with the NWParameters.allowUltraConstrainedPaths set to true. The request works perfectly when connected to wifi or cellular. However, it does not work at all when the current path is ultra constrained. When attempting this request through my NWConnection I receive an error that says:
The operation couldn’t be completed. (Network.NWError error 50 - Network is down)
Is this expected? I have confirmed my physical device is connecting to carrier provided satellite and I have been able to load data in other ios apps from Apple like the music app while on this carrier constrained connection. If this is not the correct way to move data when the path is ultra constrained what is the correct way?
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?
In my application, there is a Network Extension with the bundle ID com.xxx.agent.yyy.zzz.ne. There is a user upgraded their system to macOS Sequoia 15.3, they faced an issue where enabling this Network Extension failed. Even after uninstalling the application and the Network Extension, restarting the system, and reinstalling multiple times, the enabling process still failed.
it alert: Failed to enable the Network Extension.
When checking the status via "systemextension list", it always shows "activated waiting for user".
This shows the normal enabling process log:
This shows the log when the enabling fails upon clicking. Strangely enough, there is no activation operation log when it fails. What could be the problem?
We are migrating our iOS app to macOS. On iOS, it works fine. But when I try and run on macOS and connect to the VPN, I am getting an error like failed to fetch /Users/stuart/Library/Developer/Xcode/DerivedData/app-byzvshkqegwzqxgervfswmsughkm/Build/Products/Debug/<app_name>.app/Contents/PlugIns/<network_extension_name>.appex/Contents/_CodeSignature/CodeRequirements-1 error=-10.
If I have Settings -> VPN open, it rapidly is connecting and disconnecting. Is there anything I need to do specific to macOS to make this work? Or is this related to a broken code signature? Thanks in advance!
Hi all,
We've been exploring the capabilities of the Network.framework for peer-to-peer communication and have run into some behavior that we haven't been able to fully explain with the existing documentation.
In our tests, we’re working with 12 iOS devices, all disconnected from Wi-Fi to force communication over Apple Wireless Direct Link (AWDL). While using the Network.framework to create peer-to-peer connections, we observed that the number of connected peers never exceeded 8, despite all 12 devices being active and configured identically.
Some questions we’re hoping to get clarification or discussion on:
Is there a known upper limit to the number of peer-to-peer connections supported via AWDL?
Are there conditions under which the framework or system limits or throttles visible peers?
Does AWDL behavior vary by hardware model, iOS version, or backgrounding state of the app?
Is there any official documentation or guidance around peer discovery or connection limits when using NWBrowser and NWConnection in a peer-to-peer context?
We’d appreciate any insights from the Apple engineering team or other developers who have worked with larger peer groups using Network.framework in peer-to-peer mode.
Hello, I am new to App development, so I am looking for some advice.
I want to develop an app for iPhone, which downloads files (pdf, jpg)from a server to the local storage. I also want to get data from the server to be used in my app. This could be a database access or just simple xml files. I
want a secure access based on userid and password.
Since in a later version, my app should also run on Android Phones, I am reluctant to use iCloud.
I was thinking sftp, but that does not seem to be supported for iOS.
Crash within com.apple.CFNetwork.Connection , specifically due to EXC_BAD_ACCESS KERN_INVALID_ADDRESS.
The crash occurred within the nghttp2_session_del() function indicating a problem with the nghttp2 library, which is commonly used for HTTP/2 communication.
This points towards a memory management issue.
EXC_BAD_ACCESS generally signifies that the application attempted to access memory it didn't have permission to access, often caused by using a pointer after it has been freed or pointing to an invalid memory address.
** Crashed: com.apple.CFNetwork.Connection
0 libapple_nghttp2.dylib 0xa6ec nghttp2_session_del + 124
1 CFNetwork 0xace4c + 428
2 CFNetwork 0xacc80 + 36
3 libdispatch.dylib 0x2370 _dispatch_call_block_and_release + 32
4 libdispatch.dylib 0x40d0 _dispatch_client_callout + 20
5 libdispatch.dylib 0xb6d8 _dispatch_lane_serial_drain + 744
6 libdispatch.dylib 0xc214 _dispatch_lane_invoke + 432
7 libdispatch.dylib 0xd670 _dispatch_workloop_invoke + 1732
8 libdispatch.dylib 0x17258 _dispatch_root_queue_drain_deferred_wlh + 288
9 libdispatch.dylib 0x16aa4 _dispatch_workloop_worker_thread + 540
10 libsystem_pthread.dylib 0x4c7c _pthread_wqthread + 288
11 libsystem_pthread.dylib 0x1488 start_wqthread + 8
**
The stack trace does not point to any code within our product codebase, hence making it difficult to pinpoint the root cause of the issue as there are multiple network calls running concurrently during the app's runtime.