I'm getting "Error Domain=NEVPNErrorDomain Code=1 \"(null)\"" only first time while connecting to VPN server, later onwards it works perfectly.
I've checked NEVPNErrorDomain Error 1 when trying to start TunnelProvider network extension similar to my problem and followed the way its said in this solution but still getting same error.
So here is my code for connecting to VPN Server using Network Extension.
func initVPNTunnelProviderManager(){ self.vpnManager.loadFromPreferences { (error) -> Void in if((error) != nil) { print("VPN Preferences error: 1") } else { let p = NEVPNProtocolIKEv2() p.username = "******" p.remoteIdentifier = "*****" p.serverAddress = "******" let keychain = KeychainSwift() let data = keychain.getData("vpnPassword") p.passwordReference = data p.authenticationMethod = NEVPNIKEAuthenticationMethod.none p.useExtendedAuthentication = true p.disconnectOnSleep = false self.vpnManager.protocolConfiguration = p self.vpnManager.isEnabled = true self.vpnManager.saveToPreferences(completionHandler: { (error) -> Void in if((error) != nil) { print("VPN Preferences error: 2") } else { var startError: NSError? do { try self.vpnManager.connection.startVPNTunnel() } catch let error as NSError { startError = error print(startError) } catch { print("Fatal Error") fatalError() } if((startError) != nil) { **// Here it comes first time later onwards it goes to else block. (Which I'm expecting first time too) print("VPN Preferences error: 3")** let alertController = UIAlertController(title: "Oops..", message: "Something went wrong while connecting to the VPN. Please try again.", preferredStyle: UIAlertControllerStyle.alert) alertController.addAction(UIAlertAction(title: "Dismiss", style: UIAlertActionStyle.default,handler: nil)) self.present(alertController, animated: true, completion: nil) print(startError) } else { print("Start VPN") } } }) } } } Can someone help me why its first time going inside if ?
if((startError) != nil) { // Here is control coming for first time } else { // Which should always come here //later onwards its coming here, not first time. } NOTE : I found relevant post here on GitHub but if I try this solution its giving Optional(Error Domain=NEVPNErrorDomain Code=4 "(null)") issue because, The configuration is stale and needs to be loaded. You should call loadFromPreferencesWithCompletionHandler: and in the completion handler modify the values you want to modify, and then call saveToPreferencesWithCompletionHandler:.
Thanks in advance.