Yosemite 10.10.2 Unable to restore later then a month out in time machine.
Mac (21.5-inch, Mid 2011) When I go into time machine it won't allow me to restore beyond 2/19/15. I think my kids downloaded a virus on 2/17/15 as I noticed all my applications in the finder window reporting "modified" for this date 2/17/15. Time machine has entries beyond 2/19/15 grey'd out and I tried to boot into recovery mode via command + R and use time machine from the utility that way with no luck. I'm backing up to my Synology over the network with plenty of space (just shy of a 1TB left available). Any tricks I can try via the command line to fix the issue or see what's going on?
iMac, OS X Yosemite (10.10.2), Time machine issues.