Currently Being ModeratedMar 27, 2013 9:02 AM (in response to Douglas Urner)
Howdy. I'm experiencing the same problem. 3 of my computers running ML are reporting properly, the one Lion machine shows as "unknown".
Currently Being ModeratedMay 29, 2013 1:47 AM (in response to Douglas Urner)
Same issue here. Mountain Lion 10.8.3 running Server 2.2.1.
All of the client Macs run Snow Leopard, all listed as Latest Backup "Unknown" in Server.app
On the client Macs, the backup dates show up properly in Time Machine Preferences.
Currently Being ModeratedJun 2, 2013 5:10 PM (in response to Douglas Urner)
Same here - TM clients running 10.6.8 display as "unknown" on the /Backups tab on ML Server (ML 10.8.3).
My one client on a ML machine is correctly displayed (time/date of last TM backup).
As far as I can tell, the TM backups are working properly on the 10.6.8 machines. The problem seems to be a bug in ML Server
Solution: upgrade all 10.6.8 machines to Mountain Lion.
Roadblock: my 1st-gen MacBook Air doesn't support ML.