Just to repeat what's already been said -- don't buy these.
I also have two of them. I've tried (one at one time) in extender mode, as a normal access point, and also using both in a wireless bridge setup.
And in all cases, after a few days -- full signal, no connection. Of course, there's all the other issues that have been mentioned here that you can compensate for which will extend the "life" a little longer, like DHCP (and other broadcasts) dying, trying to make sense of the syslog, and going through each configuration option meticulously looking for the magic one that will stop the regular disconnects.
I even went as far as to write up a script which logs into the device and reboots it nightly which extended the full power cycle time of the device up to a few weeks while being an access point (less in the other modes). But at the end of the day, several times a month I'm back down to the power outlet to reset it manually.
Naturally it's too late to return them and I have no idea what really to do with them, besides paper weights.
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If anyone has any other ideas, please let me know.
As a final note, both are Rev A1s, but it seems from this thread that the B rev isn't any better.