EDIT 9/19/2023: This blog post has received significant update.
In this second part of the Demystifying Hybrid Free/Busy, we will cover troubleshooting of Hybrid Free/Busy scenarios, more specifica...
Updated Sep 19, 2023
Version 16.0
Blog Post
Hello,
We have exchange 2010 Sp3 environment coexistence with 2016 exchange server as hybrid. We have recently configured hybrid and migrated successfully migrated user to office 365.
We have noticed that free busy is not working from office 365 to On-prem users and vice versa.
We have checked the Autodiscover endpoint from outside the network it is giving authentication prompt same for EWS gives the authentication prompt however free busy not working. As per the article I have set the target sharingepr but still we have issues. Also we have toggled wssauthentication for exchange 2010 and 2016 and restarted the app pool but no luck.
Can you please suggest us we are kind of stuck and not migrating any mailboxes to cloud.