We recently had to repair our Exchange 2010 server. Prior to the repair, shared calendars were not a problem.
After the repair, anyone that still uses Windows XP, can't view shared calendars as they did before.
When they try, they get a message that they must be connected to view the calendars. They are connected and the other people that have the calendars are connected.
I've seen nothing in the event viewer that indicates a problem.
Thanks in advance.