802.1ac Client Issue

I have the new Apple Airport Time Capsule as my router, being fed from a Comcast cable modem. As you know, the Apple TC is dual band capable and can provide 802.1ac wireless connectivity. I also have an Apple Airport Express located upstairs that does a good job of extending my network, providing excellent wireless n coverage throughout the second story of the house.
I purchased a TrendNet AC1200 Dual Band Wireless Media Bridge that is 802.1ac capable. To the Media Bridge I have wired Ethernet connections my DirecTV HD DVR, my AppleTV and my Roku box. When the TrendNet Media Bridge is wirelessly connected to the TC, all is well in that I get the speeds I would expect (500-800 Mb/s) from having an 802.1ac client wirelessly connected to a 802.1ac router.
My problem is that the TrendNet Wireless Media Bridge will often connect on its own to the Airport Express upstairs which is 802.1n, and only give me throughput speeds of ~270 Mb/s. I want the TrendNet to always stay wirelessly attached to the Time Capsule obviously, in order to give me ac-to-ac connectivity.
What I thought was the solution was to assign the TrendNet a static IP address (10.0.1.21) and make the default gateway setting on it the IP address of the Time Capsule (10.0.1.1). However, even with this setting, the TrendNet will regularly connect to the Airport Express upstairs. I should also say that the Time Capsule and Airport Express are about the same distance from the TrendNet.
So, how can I force the TrendNet Media Bridge to stay connected only to the Airport Time Capsule? I assume Apple will eventually ship a 802.1ac Airport Express, which would solve the problem. But until then?
Any help would be appreciated.
Thanks,
Mark

So, how can I force the TrendNet Media Bridge to stay connected only to the Airport Time Capsule?
It would seem that this is really a question for TrendNet support.
There is nothing on the Apple devices that would tell the TrendNet device what to do.
I suggest that you ask TrendNet if it is possible to force the Media Bridge to pick up a signal from a specific device.
I imagine that the TrendNet, like the Apple, is simply looking for the strongest signal....not the fastest signal... and I doubt that you can change that....but if it is possible, the "how to" is a question for TrendNet support.
I assume Apple will eventually ship a 802.1ac Airport Express, which would solve the problem.
An 802.11ac AirPort Extreme would likely solve the problem right now.

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Blog:
http://blogs.technet.com/rmilne
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