Reference

https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-Unable-to-connect-to-FortiGuard-servers/ta-p/226149

Situation

# FortiGuard不能用，可能是官方的伺服器出問題
If FortiGuard is not working, it may be due to an issue with the official servers.

Solution

# 連下面的網址看自己那一個區域的服務有沒有正常
https://status.query.fortiguard.net