Linksys WRT54GL and Airport Extreme dropping connections

In looking through these forums, I realize that people have had problems with their Linksys WRT54G routers and their Airport cards. There seem to be a lot of suggested fixes, but no definitive answer as to what's wrong. I don't know either, and after changing channels, changing Linksys firmware, changing encryption, creating background pings, and all of the recommended solutions, the problem persists. I wanted to document it here in the hopes that someone can figure out what's wrong. Here's a tail of /var/log/system.log during a period when the Mac was having trouble connecting to the Linksys. I don't believe that this is due to Wifi interference or the Linksys, since other machines in the house (a Mac running 10.4.8, but using a Cisco card), for example, don't have these same problems at this time.
Basically, this kind of behavior repeats for a half-hour or so, then settles down for "a while," where a while could be an hour or could be 6 hours, and then it repeats. I have no idea what the problem is, and I suspect it's a problem with the Airport Extreme, rather than with the Linksys. Ideas?
Feb 3 18:46:30 droopy kernel[0]: AirPort: Link Active: "67ramona" - 001839cf9822 - chan 1
Feb 3 18:46:30 droopy configd[54]: AppleTalk startup
Feb 3 18:46:36 droopy configd[54]: AppleTalk startup complete
Feb 3 18:50:22 droopy kernel[0]: AirPort: Link DOWN (AP deAuth 0)
Feb 3 18:50:22 droopy configd[54]: AppleTalk shutdown
Feb 3 18:50:22 droopy configd[54]: AppleTalk shutdown complete
Feb 3 18:50:26 droopy configd[54]: posting notification com.apple.system.config.network_change
Feb 3 18:50:26 droopy configd[54]: setting hostname to "droopy.local"
Feb 3 18:50:26 droopy lookupd[3212]: lookupd (version 369.5) starting - Sat Feb 3 18:50:26 2007
Feb 3 18:50:32 droopy kernel[0]: AirPort: Link DOWN (out-of-range 0)
Feb 3 18:50:38 droopy kernel[0]: AirPort: Link Active: "67ramona" - 001839cf9822 - chan 1
Feb 3 18:50:38 droopy configd[54]: AppleTalk startup
Feb 3 18:50:41 droopy configd[54]: posting notification com.apple.system.config.network_change
Feb 3 18:50:41 droopy lookupd[3216]: lookupd (version 369.5) starting - Sat Feb 3 18:50:41 2007
Feb 3 18:50:41 droopy configd[54]: setting hostname to "droopy"
Feb 3 18:50:43 droopy mDNSResponder: Repeated transitions for interface en1 (192.168.1.134); delaying packets by 5 seconds
Feb 3 18:50:44 droopy configd[54]: AppleTalk startup complete
Feb 3 18:53:28 droopy kernel[0]: AirPort: Link DOWN (AP deAuth 0)
Feb 3 18:53:28 droopy configd[54]: AppleTalk shutdown
Feb 3 18:53:28 droopy configd[54]: AppleTalk shutdown complete
Feb 3 18:53:32 droopy launchd: Server cbff in bootstrap 1103 uid 0: "/usr/sbin/lookupd"[3216]: exited abnormally: Hangup
Feb 3 18:53:32 droopy configd[54]: posting notification com.apple.system.config.network_change
Feb 3 18:53:32 droopy configd[54]: setting hostname to "droopy.local"
Feb 3 18:53:38 droopy kernel[0]: AirPort: Link DOWN (out-of-range 0)
Feb 3 18:53:38 droopy lookupd[3235]: lookupd (version 369.5) starting - Sat Feb 3 18:53:38 2007
Feb 3 18:53:38 droopy kernel[0]: AirPort: Link Active: "67ramona" - 001839cf9822 - chan 1
Feb 3 18:53:38 droopy configd[54]: AppleTalk startup
Feb 3 18:53:41 droopy launchd: Server cb0f in bootstrap 1103 uid 0: "/usr/sbin/lookupd"[3235]: exited abnormally: Hangup
12" PowerBook G5 Mac OS X (10.4.8)

John Galt wrote:
jr azzarelli wrote:
Drops wifi and ethernet equally.
I thought I understood your Airport network would disconnect, but I don't understand what you mean by "drops ethernet". Clearly, if your wired connection stops working, so will your Airport network. Explain?
What I am saying is that I have wireless connections to the Ae and I have wired connections to it as well. Both are getting dhcp from the Ae. Both are getting dropped. In the log I am getting these entries, about once per hour...
"Jan 06 10:26:00 Severity:5 Connection accepted from ::ffff:10.0.97.190/57902.
Jan 06 10:26:01 Severity:5 unloading current configuration.
Jan 06 10:26:20 Severity:5 (WAN) link state is Up.
Jan 06 10:26:20 Severity:5 Deauthenticating with station ff:ff:ff:ff:ff:ff (reserved 3).
Jan 06 10:26:20 Severity:5 Rotated TKIP group key."
The 10.0.97.190 is the recently-added OS X Server. Not sure what the port is. But it seems to be doing something untoward.
Anyone?
Anyone?
Bueller??

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