Failed to register service with Bonjour

Question

I can't seem to register my Mac Mini's services with Bonjour.  Below is what I think is relevant log to the issue.  An Airport Extreme (Time Capsule, actually) is the host.  It's running version 7.6.1.  My Mac Mini is running 10.6.8.
I checked with "Bonjour Browser" and the services are listed.  I can get access all these services locally and over the internet.  The only problem is that when the Mac goes to sleep, it can not be awaken, locally or over the internet.
Any ideas?
Jul  4 02:34:56 localhost com.apple.launchctl.System[2]: DNSServiceRegister("ssh"): -65563
Jul  4 02:34:56 localhost com.apple.launchctl.System[2]: DNSServiceRegister("sftp-ssh"): -65563
Jul  4 02:34:56 localhost com.apple.launchctl.System[2]: DNSServiceRegister("ssh"): -65563
Jul  4 02:34:56 localhost com.apple.launchctl.System[2]: DNSServiceRegister("sftp-ssh"): -65563
Jul  4 02:34:56 localhost com.apple.launchd[1] (com.openssh.sshd): Unknown key: SHAuthorizationRight
Jul  4 02:34:56 localhost kernel[0]: yukon: Ethernet address 00:16:cb:ad:46:d7
Jul  4 02:34:56 localhost kextd[10]: 425 cached, 0 uncached personalities to catalog
Jul  4 02:34:56 localhost kernel[0]: display: family specific matching fails
Jul  4 02:34:56 localhost kernel[0]: Previous Shutdown Cause: 0
Jul  4 02:34:56 localhost kernel[0]: AppleTyMCEDriver::probe(Macmini2,1)
Jul  4 02:34:56 localhost kernel[0]: AppleTyMCEDriver::probe fails
Jul  4 02:34:56 localhost kernel[0]: ath_attach: devid 0x1c
Jul  4 02:34:56 localhost kernel[0]: GFX0: family specific matching fails
Jul  4 02:34:57 Mac-Mini-USA configd[14]: setting hostname to "Mac-Mini-USA.local"
Jul  4 02:34:58 Mac-Mini-USA kernel[0]: mac 10.3 phy 6.1 radio 10.2
Jul  4 02:34:58 Mac-Mini-USA kernel[0]: AirPort_Athr5424ab: Ethernet address 00:1c:b3:b1:81:8d
Jul  4 02:34:58 Mac-Mini-USA kernel[0]: AirPort: Link Down on en1
Jul  4 02:34:59 Mac-Mini-USA kernel[0]: Ethernet [AppleYukon2]: Link up on en0, 1-Gigabit, Full-duplex, Symmetric flow-control, Debug [796d,ac4c,0de1,0200,cde1,2800]
Jul  4 02:35:05 Mac-Mini-USA com.apple.usbmuxd[21]: usbmuxd-268.5 on Apr  5 2012 at 15:33:48, running 32 bit
Jul  4 02:35:05 Mac-Mini-USA com.apple.usbmuxd[21]: _CreateBonjourDeviceBrowseService (thread 0xa0746720): DNSServiceBrowse() failed -65563.
Jul  4 02:35:05 Mac-Mini-USA com.apple.usbmuxd[21]: StartListeningForBonjourDevices failed to create bonjour thing-duder.
Jul  4 02:35:05 Mac-Mini-USA rpc.statd[25]: statd.notify - no notifications needed
Jul  4 02:35:05 Mac-Mini-USA fseventsd[34]: bumping event counter to: 0x3b67f (current 0x0) from log file '0000000000037354'
Jul  4 02:35:05 Mac-Mini-USA bootlog[41]: BOOT_TIME: 1341387288 0
Jul  4 02:35:07 Mac-Mini-USA /System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow[30]: Login Window Application Started -- Threaded auth
Jul  4 02:35:07 Mac-Mini-USA org.apache.httpd[19]: httpd: apr_sockaddr_info_get() failed for Mac-Mini-USA.local
Jul  4 02:35:07 Mac-Mini-USA org.apache.httpd[19]: httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
Jul  4 02:35:08 Mac-Mini-USA blued[42]: Apple Bluetooth daemon started.
Jul  4 02:35:08 Mac-Mini-USA kextd[10]: writing kernel link data to /var/run/mach.sym
Jul  4 02:35:10 Mac-Mini-USA kernel[0]: display: Not usable
Jul  4 02:35:10 Mac-Mini-USA /usr/sbin/ocspd[64]: starting
Jul  4 02:35:12 Mac-Mini-USA ARDAgent[71]: Failed to register service with Bonjour. -65563

Answer 1

Thank Linc.  WakeOnLan is quite niffty but I'm not physically there and the only computer (Mac Mini) I have access to is the one that can't be awaken (other than scheduled wake by itself).
But I did run WakeOnLan on the Mac Mini and was able to see itself, amognst others, listed as "awake".
I'll try to get my family member there on the local network to try WakeOnLan and see if it's listed when it's asleep.
Meanwhile I'll briefly describe my setup and status:
The Setup:
MacBook Air => Internet =>  Cable Modem => Time Capsule => Mac Mini
Mac Mini is Ethernet connected to Time Capsule.
Time Capsule hosts the entire local network.
Mac Mini is headless (no keyboard or monitor connected)
Mac Mini is setup for Remote Management, Remote Login, and Web Sharing.
Port Mapping on Time Capsule is setup accordingly for the above services.
"Wake for network administration" is selected in Energy Saver.
Successful Connections  (only when already awake):
SSH over LAN and over Internet
VNC over LAN and over Internet
File Sharing over Internet
Web Sharing over Internet
Mac Mini shows up as  available for connection in Finder of another locally connected Mac.
Note: while accessing over LAN, I've only tried using a client (MacBook Air) via WiFi.