Upgrade to 7.6 broke my network

I just upgraded my Aiport Extreme to firmware 7.6 and I'm unable to connect to it from any of my Lion or SL Macbooks.
Console tells me:
11-11-11 09:41:02,000 kernel: MacAuthEvent en1 Auth result for: 00:1c:b3:ae:c0:51 No Ack
And in the UI I get a timeout connecting to my network.
I'm now on the wired part of the network on the hunt for the older firmware to downgrade. Really disappointing!

OK, after d*cking around with my wireless for most of the day after having done the 7.6 upgrade I was finally able to get everything working again by doing the following:
1. Upgraded all to 7.6
2. Reset Time Capsule and reconfigured. Note: If I tried selecting the "Allow network to be extended" checkbox, I would lose it again upon updating and have to reset once again.
3. Reset AEBS's, reconfigure, selected "Use ethernet to connect to and extend my existing network" (not sure if that is it verbatim, but you get the idea).
4. All working again, network extended again, in spite of NOT being able to select the "allow network to be extended" checkbox on the TC setup. just double checked with Airport Utility, and it did not autmatically become selected by virtue of adding on the AEBS's the way I did.
Works beautifully for me now - YMMV
< Edited By Host >

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