Well guys, I was hoping that DSM 4.0 would fix the issue with Time Machine and the corruption of the backup sparsebundle package, but it appears from the posts I have read so far that the problem still exists. Come on Synology, put a bit more effort to fix it. It is after all a documented feature and it should work (wired and wirelssly); time capsule works fine as well as air disks through Apple's Extreme routers, so I dont get it... you guys can do it!
There is a work around; it will cost you nothing during the trial, but $89 USD per computer after the trial is over. I have extended my license a couple of times, so no big deal... havent spent a dime yet. Here is how it works:
First, you have to create iSCSI disk on your Synology (follow the wiki here for using iSCSI protocol)http://forum.synology.com/wiki/index.ph ... iskStation
Second, you have to download the iSCSI initiator from here http://www.studionetworksolutions.com/s ... i=11&fi=51
and follow this directions:http://forum.synology.com/wiki/index.ph ... _Computers
Third, setup time machine to use your new iSCSI disk space for Time Machinehttp://forum.synology.com/wiki/index.ph ... _Protocols
It will take you around 10 to 15 minutes for the initial setup, but it works flawlessly afterwards. I have my MacBook Pro backup wirelessly with sleep on, have shutdown and put the computer to sleep while backing up, and no corruption whatsoever... the way it's suppose to be! I wish the easy method would work this way.