I have just had BT broadband fitted. I set up my LG Oled 65b7V tv to the internet but selected the wrong security setting. EG Open instead of WP2. So now it won't connect to the internet. But there doesn't seem anyway of adjusting the security settings or even deleting that wifi network so I can start again. LG Technical Support say the only option is to reset factory settings. Surely there must be a way. Please someone help!