My TV model is UH6030. It's a couple of years old and no longer connects to wifi. It's been a couple of weeks now and I'm pretty upset about this, since I pay for Netflix and Prime and can't watch anymore. My wifi is working fine in all other devices. "Advanced Network Settings" is grayed out and manually changing the time and date didn't help. Nor does re-entering my password over and over or unplugging, restarting, etc. Tech support processes didn't help either. What can I do besides buy a new TV?