Range extender WN3000RPv3 is NOT SECURE

Wow, I am disappointed in Netgear's support.  

I have a secure network, and I do *not* want to rely on WPS to tell the range extender which wi-fi network to choose. 

I can connect to the PC via the lan cable, or via the wi-fi output of the extender. But the only non-WPS option that Netgear provides is to go to mywifiext.net and let their javascripts do the job for me.

*Is there any way to use the PC to tell the extender which wi-fi network to choose without going online (if you use routers for data)

*What protocol does the PC use to interact with the extender. Is this proprietary to Netgear and we aren't allowed to know it???  

*What on earth does mywifiext.net  do? Is it a big secret how to do this manually or via a local program?

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A HUGE danger is, at any moment, Netgear could say "Oh, we've decided to charge you a fee everytime you want to set up your network, just enter your paypal address at mywifiext.net "

A BIGGER danger is, since we have no control over whatever mywifiext.net is doing, we actually do not have a secure network when using this junk.

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I went through the process of sending a support ticket, and getting on the phone after wating all day, only to have the support rep read me the instructions down the phone. 

Huge significant complaint here.