I have a LG TV and so far it has also worked flawlessly that I could use it in the WLan for apps such as Netflix etc. Unfortunately, but now comes for days the error message that the TV could not connect to the network. All other devices (smartphones, laptops, etc.) can be connected without problems with the Wlan. If I put the PW on the TV, the error message "The network connection can't be established. Please check the network name u the password and try again." Of course, PW and name are correct. That can't be it. With cable, the Internet goes on TV. The wireless signal is sufficient, otherwise it would not have worked so well before… There was nothing changed and the LG shows me the network. Even the pairing via WPS button did not give anything. Unfortunately, my engineering skills are not enough to fix the problem. On the Internet was something of IP addresses that need to be changed. But I have no idea about that. Does that really have to be? Or something from Mac filters? That too does not really tell me anything. Maybe someone has a little tip or a guide for people who are not so well versed.
Try to connect your TV manually to the Internet, that means you have to type in the name of the router and so on yourself. Maybe that brings something
Unfortunately, that does not work. But thanks anyway!