@1MOREP77 

Usually it is because the Router is putting out WPA and the router setting is is for WPA/WPA2 mixed.

Need to check the Wireless settings and make sure only WPA2 is being used and usually use AES as well.

@IrvSp where do I see what type of signal it is putting out?

GMo77 wrote

@IrvSp where do I see what type of signal it is putting out?

@GMo77 

Generally under the Router GUI Advanced Wifi Settings page:

Can verify that using a Network Analyzer too on any Device that can see Wireless signals. Some of them may not show the data though...