Time Machine getting stuck on random hourly backups?? Please help!

I set up Time Machine the yesterday, it compleated it's initial backup fine, and performed about 10 or so hourly backups, then randomly on one of it's hourly backups it got stuck. It never actually started the backup. The preferences said it was backing up, but the progress bar wasn't moving, and there was no activity on the drive. I stopped the "backup", and from then on I could not get it to do another backup.
So last night I reformatted the external and decided to let TM start over. Once again it finished the initial backup fine, and I went to bed. While I was in bed it finished 3 more hourly backups, and I woke up this morning to find it stuck again, trying to do it's 2:05AM backup. The computer was awake all night, so it should have no problems. The preferences say it is backing up, but never makes any progress, and there is no drive activity.
Here is the relavent errors from my System log:
Nov 1 02:05:50 todd-sullivans-imac /System/Library/CoreServices/backupd[304]: Backup requested by automatic scheduler
Nov 1 02:05:50 todd-sullivans-imac /System/Library/CoreServices/backupd[304]: Starting standard backup
Nov 1 02:05:57 todd-sullivans-imac /System/Library/CoreServices/backupd[304]: Backing up to: /Volumes/Backup/Backups.backupdb
Nov 1 02:05:57 todd-sullivans-imac /System/Library/CoreServices/backupd[304]: Ownership is disabled on the backup destination volume. Enabling.
Nov 1 02:05:57 todd-sullivans-imac KernelEventAgent[35]: tid 00000000 received unknown event (256)
*Nov 1 02:05:59 todd-sullivans-imac /System/Library/CoreServices/backupd[304]: Event store UUIDs don't match for volume  Macintosh HD*
*Nov 1 02:05:59 todd-sullivans-imac /System/Library/CoreServices/backupd[304]: Node requires deep traversal:/ reason:kFSEDBEventFlagMustScanSubDirs|kFSEDBEventFlagReasonEventDBUntrustable|*
Nov 1 02:09:45 todd-sullivans-imac /System/Library/CoreServices/backupd[304]: No pre-backup thinning needed: 14.57 GB requested (including padding), 132.30 GB available
Nov 1 02:09:46 todd-sullivans-imac /System/Library/CoreServices/backupd[304]: MDBackupBegin() returned result (909) > 0, waiting
Nov 1 02:10:16 todd-sullivans-imac /System/Library/CoreServices/backupd[304]: MDBackupBegin() returned result (906) > 0, waiting
Nov 1 02:10:46 todd-sullivans-imac /System/Library/CoreServices/backupd[304]: MDBackupBegin() returned result (906) > 0, waiting
I bolded the entries that I assume are the problem, but I don't know what it could be. Why does it randomly get stuck on hourly backups. BTW The "waiting" is just repeating over and over etc..... Help! Or it's back to CCC for me. Thanks
EDIT: Tried it a 3rd time, and this time it managed to do 25 hourly backups before getting stuck. does anyone have a clue here, I'd like to get this working. Every time it stops working I have to format the drive and start over to get it to backup again.
Message was edited by: tms2010
Message was edited by: tms2010
Message was edited by: tms2010

The deep traversal is being done because something in the TM data base is corrupted or not trusted. The deep traversal means the TM backupd process has to traverse your whole set of volumes being backed up. This is a very lengthy process.
No matter, it does seem you're hitting a snag of some kind. The best response I can give is for you to send the evidence to Apple feedback for the software engineers to review.
People on this forum are unlikely to know what the problem is nor have a fix for you.
When you formatted your TM backup Volume to you zero it out using Disk Utility. You could be running into an unrecoverable disk i/o error - a bad spot on the backup HD or even a bad spot on your internal HD.

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    2) I have used iStumbler to determine that the signal strength is 36% (surely strong enough?) with only 3% noise. (802.11n Gigabit Ethernet). 
    3) WD MyBookLive plugged into the GigE port on the router, and firmware is up to date.
    4) I've searched Pondini's tips, from start to finish looking for a solution, as well as the Western Digital and BT forums, but none of the common solutions seem to work.
    Help! and thanks.

    Thanks, Linc, for your response.  I will also seek advice from the manufacturers of the other devices, however, I fear that every party will foot the blame at the door of others. 
    I don't agree with your suggestion that this shouldn't be my only backup, given the marketing literature of both Apple and Western Digital.  Apple state on their website: 
    "Connect the drive, assign it to Time Machine, and start enjoying some peace of mind. Time Machine automatically backs up your entire Mac, including system files, applications, accounts, preferences, music, photos, movies, and documents."
    Similarly, Western Digital state about their MyBook Live:
    "Mac users can utilize all the features of Apple Time Machine backup software to protect their data."
    So where, I wonder, does the fault lie?  At the end of the day I am a home user and 'consumer' - just your average Joe looking for a robust home computing solution, not an IT boffin with an in-depth understanding of the nuts and bolts.  I expect both products to do what they say on the box.  Not surprisingly BT (the supplier of the router) state "The wireless 'N' technology in the BT Home Hub ensures you get a more reliable wireless connection throughout your home at all times."
    To me, the advantage with my set up (should it ever work) is that, should the unthinkable happen and my computer is stolen, the likelihood of my backup device disappearing with it (as might be the case with a locally attached device)  is greatly reduced because the NAS is hidden away elsewhere.

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    My MacBook was not normally booting up. It would turn on, make the Apple startup noise, and the bottom loading bar would progress just a little bit, then my MacBook would shut down. I tried rebooting it many times and the same thing would happen, it would just shut down. Then, I read that I can reset the PRAM (by holding Option+Command+P+R after the Apple startup noise comes). That worked, but now I get a screen that asks me to choose one of the 4 options (see:  http://images.macworld.com/images/article/2012/07/lionrecoveryutilities-289404.j pg). I choose Restore From Time Machine Backup, but it progresses to 17.6% and gets stuck there forever. I tried doing it again, and it got stuck at 17.6% again. That is why I am asking if I should just reinstall Lion, then restore a previous backup on the fresh new Lion?

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