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Hello everyone, I tried to make my iPhone change the Wifi network using Xamarin.iOS. I have already contacted the Xamarin service who told me that the programming is translated 1:1 with Swift and that the problem is an internal iPhone error. My code is: public class ConnectToWifi : IConnectToWifi { string SSID; public string Password; public IPAddress ServerAddress; int ServerPort = -1; public bool isConnect = true; public CFSocket Socket; public CFSocket ServerSocket; NEHotspotConfigurationManager wifiManager; public ConnectToWifi() { wifiManager = new NEHotspotConfigurationManager(); } public async Task<bool> Connect(string Ip, int Port) { isConnect = false; ServerPort = Port; try { ServerAddress = new IPAddress(IPAddress.Parse(Ip).GetAddressBytes()); Socket = new CFSocket(); NEHotspotConfigurationManager.SharedManager.GetConfiguredSsids((listWifi) => { if (listWifi != null) { foreach (string ssid_selected in listWifi) { if (ssid_selected == SSID) { NEHotspotConfigurationManager.SharedManager.RemoveConfiguration(SSID); } } } }); NEHotspotConfiguration wifiNetwork = new NEHotspotConfiguration(SSID, Password, false); wifiNetwork.JoinOnce = true; wifiManager.ApplyConfiguration(wifiNetwork, (error) => { if (error != null) { System.Diagnostics.Debug.Write(error.Description); } else { System.Diagnostics.Debug.Write("Connected"); } isConnect = true; }); } catch (CFSocketException exception) { System.Diagnostics.Debug.WriteLine("Ho ricevuto questo errore nella Connect: " + exception.Message); return isConnect; } catch (Exception ex) { System.Diagnostics.Debug.WriteLine("Ho ricevuto questo errore nella Connect: " + ex.Message); return isConnect; } return isConnect; } } Upon connection comes the wifiManager function.ApplyConfiguration returns the following error: ErrorDomain=NEHotspotConfigurationErrorDomain Code=8 "internal error." UserInfo={NSLocalizedDescription=internal error.} I have an iPhone X with iOS 14.6  and a MacBook with: MacOS Big Sur 14.5; Xcode Version 12.5.1; Visual Studio for Mac 8.10.7; Xamarin.iOS 14.20.0.24 (Visual Studio Community); In my AppID profile and in the Entitlements.plist file I have activated the following services: Access WiFi Information; Fonts; Hotspot; Network Extensions; Thank you very much for helping! Regards, Giacomo Ferrera