As far as I know my signal extender is wifi only with no RJ45 port. There is also no access to the extender for optimization, at least for the user. However my smartphone can access the internet, slowly, but I have no easy way to tell if the phone is using the extender or my regular router. I suppose I could shut off my router but frankly it's not worth the effort.
Edit: the wifi setting on my phone says its logged in to my house wifi, so I'm not sure what the extender is doing.
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