Hi, I've been having a similar problem. Just purchased the router 3 weeks ago. It was fine for about a week or two, other than a few deauthenication disconnects a day, then last week Init failed. A power cycle would bring it back up for a few hours to maybe a day then fail again until rebooted, or just changing the wireless settings from on to off.
Here's the log from last fail.
[INFO] Fri Jan 30 22:25:20 2009 Allowed configuration authentication by IP address x.x.x.x
[INFO] Fri Jan 30 21:06:22 2009 Time synchronized
[INFO] Fri Jan 30 14:42:37 2009 Requesting time from x.x.x.x
[INFO] Fri Jan 30 14:42:37 2009 Time server ntp1.dlink.com is at IP address x.x.x.x
[INFO] Fri Jan 30 14:42:30 2009 Starting DHCP server
[INFO] Fri Jan 30 14:42:29 2009 Obtained IP Address using DHCP. IP address is x.x.x.x
[INFO] Fri Jan 30 14:42:23 2009 Bringing up WAN using DHCP
[INFO] Fri Jan 30 14:42:23 2009 WAN interface cable has been connected
[INFO] Fri Jan 30 14:42:23 2009 LAN interface is up
[INFO] Fri Jan 30 14:42:23 2009 LAN Ethernet Carrier Detected
[INFO] Fri Jan 30 14:42:22 2009 Device initialized
[INFO] Fri Jan 30 14:42:22 2009 Failed to start wireless
[WARN] Fri Jan 30 14:42:21 2009 Wireless schedule init
I'm not sure if it's the router or the modem. I use satellite internet for now (wireless coming very soon

and its been nothing but headaches. Also in the log you'll see that the time goes way off for some reason.
ISP: Xplornet
modem: Surfbeam SM2000
Any thoughts?