Time Machine backups to WD My Book Live terribly slow
I got a Western Digital My Book Live for Christmas and have set it up to take Time Machine backups over my home Wifi network.
Unlike many other posts I've seen, my initial backup took a reasonable amount of time in my opinion. My initial backup was about 400 GB and it did it over night in about 12 hours. I did however plug my Macbook into my router via ethernet in hopes that would be faster (the My Book is also plugged into the same router via ethernet). This was 2-3 weeks ago.
Since then, I have set Time Machine to off as I use my Macbook at work each day and manually tell Time Machine to backup when I'm at home with my computer. I didn't want Time Machine to constantly have errors while looking for my backup disc when I was at work and not at home.
I have been trying to a manual backup all weekend now with no luck. I have approximately 5 GB to backup, and Time Machine is only backing up 50 MB an hour if that. I have even plugged in my computer via ethernet again.
Any ideas on how to speed this up? I've also read a lot about Spotlight indexing slowing TM down, but I don't think Spotlight is indexing right now.
MacBook Pro, OS X Mountain Lion (10.8.2), Non-unibody, 4 GB RAM, 2.2 GHz