https://community.fortinet.com/t5/FortiClient/Technical-Note-FortiClient-fails-to-install-from-FortiClient-EMS/ta-p/193680
The deployment service error message may be caused by any of the following. Try eliminating them all, one at a time.
1. Wrong username or password in the EMS profile
2. Endpoint is unreachable over the network
3. Task Scheduler service is not running
4. Remote Registry service is not running
5. Windows firewall is blocking connection
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
Skey
10 months ago