Constant drops and hangs

Hi
I bought my Airport Extreme base station before Christmas and have sufferer very frequent dropouts and reboots and/or complete hangs. Just now, I dropped connectivity and the logs show for the immidiate time period and my minute long wireless downtime:
Feb 25 18:19:32 Severity:6 Parameter updated - fire.
Feb 25 18:19:32 Severity:6 Parameter updated - acRI.
Feb 25 18:19:32 Severity:5 unloading current configuration.
Feb 25 18:19:50 Severity:5 Deauthenticating with station ff:ff:ff:ff:ff:ff (reserved 3).
Feb 25 18:19:50 Severity:5 Internet Configuration leased -- host <213.113.132.47/255.255.255.192> gateway <213.113.132.1> dns <195.54.122.199 81.26.227.3 195.54.122.204 81.26.228.3> wins lease <3600> dom
Feb 25 18:19:50 Severity:5 Rotated TKIP group key.
Feb 25 18:19:53 Severity:5 Associated with station 00:16:cb:bd:42:8c
Feb 25 18:19:53 Severity:5 Installed unicast CCMP key for supplicant 00:16:cb:bd:42:8c
Feb 25 18:20:02 Severity:5 (WAN) link state is Up.
Feb 25 18:20:29 Severity:5 Connection accepted from fe80::216:cbff:febd:428c%bridge0/49237.
Feb 25 18:20:46 Severity:5 Connection accepted from fe80::216:cbff:febd:428c%bridge0/49239.
Any advice on my mal-configuration or possible sign of hardware failure or... greatly appreciated.
Thanks,
peter

I am at the latest firmware - which was already out when I bought my Extreme.
Before downgrading, I'll try to find the release notes to see what "features" I will loose
I am using the "full feature set" of my base station, channeling all traffic to my network through it. Thought (without basis) that the reeboots had to do with "load". The reboots erases logs, so next step will be setting up syslog on a different machine

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    Use the links provided.
    Recover your AppleID via https://appleid.apple.com/
    Reset your password via iforgot.apple.com
    If the iPhone is asking for an AppleID you do not recognize, the iPhone
    is Activation Locked. Only the person who initiated the Activation Lock
    can remove it. There is no workaround for Activation Lock.

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