Is there a wireless router that works with 10.9 I will also need an extender?

Routers are not dependent on the version of Mac OS X or Linux, or Windows, or IOS or any other OS you are running on your computers, pads, or Phones.

If you killed your Router, it was not the upgrade to 10.9 Mavericks that did it.

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The new Apple Routers are very nice, and support a higher-bandwidth protocol 802.11ac (when used with NEW Macs).

Some of those folks have had the WiFi die in their Macs because configuration problem were carried forward from previous versions.

That is not a dead router, that is a Mac problem. And the fix is, to use

System preferences > Network > WiFi > (Assist me) > Assistant ...

... and set it up again from scratch, INCLUDING a new "Location".

Close the window and save changes when complete.

A Restart is occasionally required to get everything to take effect.

What I use and love: Netgear R6200 (no longer top of the line but gets through brick and maintains 35Mb signal at 30 ft. and is $100 less than when I bought it seems so short a time ago.

I don't (Mac Pro 1,1) run 10.9 which while I can find issues wth some Macs and wifi and with Apple routers, I would look at what you use for your Mac Pro to add wireless which might.

http://www.amazon.com/NETGEAR-Wireless-Router-Gigabit-R6200/dp/B008HO9DIG/http://www.amazon.com/Netgear-Wireless-Router-Gigabit-R6300v2/dp/B00EM5UFP4/ref= sr_1_10?s=electronics&ie=UTF8&qid=1385910313&sr=1-10&keywords=netgear+wireless+r outer

Mavericks fully fixes 802.11ac transfer speeds in OS X

Apple's software catches up with its hardware, improving on 10.8.5.

I too experienced the same problem after upgrading to 10.9 though. the same router works fine if I only access with my phone if I turnoff wifi of my mac Book osx.

There is also a firmware update for the new tall Airport Express Base Station and Time Capsule.

About AirPort base station firmware updates

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When you talk about routers, whether Apple or Netgear, there are always firmware updates, though I've seen where Apple will stop with some "older" products and no longer, and they do improve OS and new standards support for various features.

So annoying .. just bought Linksys N6000 router so not sure how it can be an older product, yet its still unsupported. Its the second router i've bout because of compatability problems aswell, not really sure what to do at this point.

Try a different router ? .. Or maybe i should just buy a PC ? lol

What a joke .

yet its still unsupported

¿How did you decide that?