Lion Server: Wiki calendar service may be unavailable after upgrade or migration

After upgrading or migrating data to Lion Server v10.7 or 10.7.1, the Lion Server Wiki calendar service may be unavailable when users try to reach the web calendar service. Users may experience the following symptoms:

  • An alert that states "Too many redirects occured while trying to open"
  • An alert that states "Service Unavailable" and "Wiki ACL RPC failed"
  • An empty, dimmed calendar with a persistent "Getting events from server" message
This article has been archived and is no longer updated by Apple.

If you upgrade or migrate to Lion Server v10.7.2, or newer, the Wiki calendar service should not be affected by this issue.

If you upgraded or migrated to Lion Server v10.7 or 10.7.1, the issue can be resolved by executing the following Terminal commands on the server:

sudo serveradmin stop calendar
sudo serveradmin settings calendar:Authentication:Wiki:URL = ""
sudo serveradmin start calendar


This issue may occur after:

  • Migrating data from Mac OS X Server v10.5 to Lion Server v10.7 or 10.7.1.
  • Upgrading to Lion Server v10.7 or 10.7.1 from Mac OS X Server v10.6, which was previously upgraded from Mac OS X Server v10.5.
Last Modified:

Additional Product Support Information

Start a Discussion

in Apple Support Communities
See all questions on this article See all questions I have asked
United States (English)