Thread Details - HUAWEI Community. There might be a network problem, please try again. Hi. I can't connect to our wifi. It always says Denied internet access. I already tried restarting the router. It doesn't have any problem with other devices, except my phone Huawei Y9 2019. Hope you can help me with this : (. Thanks Meter: 2,708. Issues with SIM card adaptor (WiFi/Bluetooth) In case you are using a SIM card adaptor try this: - shutdwon phone. - open SIM card slider. - restart phone. - try WiFi and Bluetooth services. Probably some SIM card adaptors cause pressure on the main board resulting in WiFi and/or Bluetooth issues. brgds, Hello, the very same problem here. I started with stock emui 4.0.1 as far as I remember correctly and locked bootloader. Unlocked bootloader with 16 digit passcode from Huawei. I have huawei P8 lite and there is a very funny problem here for my wifi!!!! I am connected to my home wifi through password and my wifi shortcut key shows that I'm connected but my wifi list shows no connection! I just put the screen shots so you can understand me better..!! Take a good look. couIQT.