NEHotspotConfigurationErrorDomain Code=8 "internal error."

Question

I'm using NEHotspotConfigurationManager with on iOS 11 iPhone to connect to specific Wi-Fi spot and then disconnect from it.

Here is the code:

if (@available(iOS 11.0, *)) {
            NEHotspotConfiguration *configuration = [[NEHotspotConfiguration
                                                      alloc] initWithSSID:self.specififcWiFiSSID passphrase:self.specififcWiFiPassword isWEP:NO];
            configuration.joinOnce = YES;
          [[NEHotspotConfigurationManager sharedManager] applyConfiguration:configuration completionHandler:^(NSError * _Nullable error) {
            NSLog(@"Error : %@",error.description);
          }];
        } else {
            [Router showOfflineMessage:message];
        }

I used applyConfiguration and everything was fine, every time I want to apply WiFi configuration, an alert appears that prompts a user to connect specific network, but nothing appears now and I receiving this error in completionHanlder:

NEHotspotConfigurationErrorDomain Code=8 "internal error."

I'm using remove configuration later in code, but it seems not work as well:

[[NEHotspotConfigurationManager sharedManager] removeConfigurationForSSID:self.specififcWiFiSSID];

Question is: what happened? Why it stopped prompts me to join WiFi network, and also what does this error mean?

UPDATED : It seems it was a bug with iOS itself, restart device could help. Currently after updates all works.

Answer 1

For now, only a restart of the device fixes the issue for some time and then it happens again.

Full log: Domain=NEHotspotConfigurationErrorDomain Code=8 "internal error." UserInfo={NSLocalizedDescription=internal error.}

I've tried calling NEHotspotConfigurationManager.shared.removeConfiguration(forSSID: ssid) each time before calling:

let hotspot = NEHotspotConfiguration(ssid: ssid, passphrase: pwd, isWEP: false)
hotspot.joinOnce = true
NEHotspotConfigurationManager.shared.apply(hotspot) { (error) in
    completionHandler?(error)
}

But the issue still happens...

Answer 2

If you are still experiencing this. Make sure to add the HotSpot Capability to the AppID you are using, also add it in the Xcode Target Capabilities configuration tab and make sure to link the NetworkExtensions.framework.

This did fix the issue for me.

Answer 3

I have this internal error issue (on iOS 12.0) and the reproduce steps is as following.

1. Use NEHotspotConfiguration applyConfiguration API to show a alert prompting user to connect to a WIFI network
2. Leave that alert for like 3+ minutes then click "connect"

There will be 2 issues occur.

1. Completion handler of applyConfiguration call won't be called
2. Every attempts of NEHotspotConfiguration applyConfiguration call fails with internal error afterwards.

Sadly the way to fix this we found is to restart the device as suggested by previous answers. Just to provide another reason for developers stuck at this problem and have no idea what might be the cause of this.

Answer 4

I had the same issue. Now I use the next logic: Before call

    [[NEHotspotConfigurationManager sharedManager] applyConfiguration:configuration completionHandler:^(NSError *error){ ... }

I check whether this configuration was applied earlier, and if yes - remove it.

    [[NEHotspotConfigurationManager sharedManager] getConfiguredSSIDsWithCompletionHandler:^(NSArray<NSString *> * _Nonnull wifiList) {

    if ([wifiList containsObject:ssidToConnect])
    {
       [[NEHotspotConfigurationManager sharedManager] removeConfigurationForSSID:containsObject:ssidToConnect];
    }


    [[NEHotspotConfigurationManager sharedManager] applyConfiguration:configuration completionHandler:^(NSError *error){
            completion();
    }}];        

For me it works on iOS 12.1.4.