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Reel Rookie

TCL Smart Roku TV - 50S555 won't connect to dual band wifi when WPA2 enabled

I have a TCL Smart Roku TV (50S555 2022 model) and a ASUS RT-AX86U router sitting next to it. The TV specs for wifi are "802.11ac 2x2 Dual Band (support 2.4GHz & 5GHz)". The router is configured in dual band (Dual-Band Smart Connect 2.4GHz and 5GHz in ASUS speak).  Authentication is set to WPA2-Personal with AES encryption.  All other devices in the house connect with no problems but the Roku TV sits and spins trying to connect and fails. 

I have tried many of the suggestions from other threads - reboot TV, reset network, reset router, make sure the 5GHz uses channel 48 or less, make sure 2.4GHz uses channel 1, split the bands, etc.  with no joy. 

If I change the network authentication to "Open System", the TV connects fine which is interesting but not a useful solution.  When set to WPA2-Personal, regardless of password simplicity (e.g. 00000000), it fails to connect.

I created a guest network on the 2.4GHz band set to WPA2-Personal authentication and the TV connects fine.  Another interesting result but not a useful solution since the guest network doesn't have access to the VPN setup on the router.

Help would be appreciated.


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Reel Rookie

Re: TCL Smart Roku TV - 50S555 won't connect to dual band wifi when WPA2 enabled

Found a solution. If I changed the authentication method from WPA2-Personal to WPA2/WPA3-Personal, the TV connects and works fine.  

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