Just to confirm that I too am again getting this problem after upgrading the Time Capsule firmware. As using the Time Capsule was my only workaround to the exact same problem with other networked drives, that now leaves me without any solution at all for backing up over my network. :(
Edit: looks like it's a bug with AFP that Apple need to fix: http://discussions.apple.com/thread.jsp ... &tstart=75. Mounting the network drives via SMB solves the problem.
Edit: looks like it's a bug with AFP that Apple need to fix: http://discussions.apple.com/thread.jsp ... &tstart=75. Mounting the network drives via SMB solves the problem.