To "wirelessly extend" an AirPort network requires the use of Apple AirPort Base Stations.
You're on your own using third party products. The Netgear WNR3500 has mixed reviews at best and their customer support is unformly regarded as poor.
The Netgear WNR3500 has mixed reviews at best and their customer support is unformly regarded as poor.
Interesting how different people have different experiences - although I never needed their tech support, so I would not have an opinion on that, this wireless router was the absolute best router I've ever had. I had to stop using it because I changed ISP's and was forced to use their modem/router combination (nothing else will work with their new V-DSL service); however, I've kept the router in case I should need to use it as an extender (which I haven't). In any case, unlike D-Link, Belkin, or Link-Sys which would at most give me one bar in my livingroom and the signal would cut out intermittently (livingroom is 50 ft from study), the Netgear showed all the bars and was steady as a rock. Configuring it with MAC filtering on their website was much easier than my current one as well.
I just looked through my WNR3500 user manual - you should be able to download it if you don't have it. Check out section 4-11. It shows using two Netgear routers, one in wireless base station mode, the other in repeater mode. Other than actually trying it with an Airport Extreme, I don't know how you'd know.
Note: one of the warnings on that page: "If you use the wireless repeating function, your options for wireless security are limited to None or WEP". That would eliminate this option for me right there.
When I went to the Airport Utility, I clicked on my Airport Extreme and there was no continue but there was an edit. I clicked that and then went to Wireless, and when it says to the check the box to allow this network to be extended there isn't a box for that.
You will not find it BUSHleagueBRO. Read my original response.