If your account is hosted on the Exchange server and the Free/Busy information couldn't be retrieved in Outlook 2007/2010/2013/2016. The free/busy information for other users is displayed as slash marks (/). Note: Free/Busy information missing can be easily confused with Outside of working hours. If you see Free/Busy displayed in
There can be several possible causes for that.
- Autodiscover record is missing or set up incorrectly
You need to make sure that the AutoDiscovery CNAME record has been created for your domain. Outlook 2007/2010/2013 discovers the Availability Service URL using the AutoDiscovery feature in the Exchange environment.
Read the Knowledge Base article on What Is An Autodiscover Record And Why Do I Need It? for more information.
- Default Permissions for Calendar are missing
Check the Default Calendar permissions for the mailbox you would like to view Free/Busy information
for:right-click on a Calendar > Properties > Permissions. The permissions should be set to Free/Busy time to be displayed. Outlook Calendar/nickname cacheis corrupt
Try to start Outlook with the
Start > Run > type outlook.exe /
Note: works only in Outlook version 2007/2010
If this did not help, the Outlook autofill entry might be corrupted: when creating a new meeting, start typing the name of the affected user and, when it appears, click on the X next to it to delete the autofill entry.
Read the Knowledge Base article on How To Reset The Outlook Nickname Autocompletion Cache for more information.