Brand new AX3000.

Samsung TV U8000 was able to connect to the router and internet for the first 2 days after installing the router.

Now the TV connects to AX3000, shows up on client list, but has no internet access.

All other devices that are connected to the router have internet access.

I've tried resetting both TV and router (network and factory reset).

When I network reset the TV, it will momentarily connect to the internet for a few minutes, then disconnects and is unable to reconnect unless I do a network reset on the TV.

Any ideas on how to resolve this?