So, the sequence is: Yes. Can you reproduce this with NEHotspotConfiguration Sample? No. But I found that issue is cause by ssidPrefix + isWEP=false. You can reproduce by modify NEHotspotConfiguration Sample as NEHotspotConfiguration(ssidPrefix: self.ssid, passphrase: password, isWEP: self.isWEP) on line 112 of HotspotManager.swift tip: Issue only happen when first call apply(…) Issue can reproduce after reboot iPhone

NEHotspotConfigurationManager.apply(_:completionHandler:) had completionHandler on parameters. However, the completionHandler may not be called after apply configuration when WiFi is turn off.