New router, can't connect Panasonic Viera TV

[Gweagraff]

I just got the latest wireless router and everything seems fine, except I can't seem to connect my smart TV to it. The security settings on my router are set to WPA2. I tried to change it but I don't think it worked. I know it's accepting the password but the connection always fails. This TV is about 3 years old. And when I connect via Ethernet cable it works fine. Anyone have any advice?

[CRobGauth]

Have you checked to see if your TV has software updates?

[smith6612]

I've noticed on some devices, if you take too long to enter the key the connection attempt will time out. I had this problem with a NEST Thermostat when trying to enter my brutal-to-type WPA2 key. If it took more than a minute, it'd fail the connection. But once it got the key, it would stay well behaved!