Fortigate 7.0.17 SSL VPN disconnections and drops

Forum|Forum|5 months ago
December 30, 2025
2 replies
773 views

Dears,

Kindly note that we are experiencing SSL VPN disconnections and slowness after we upgrade the frameware to 7.0.17. The issue affects all users, and the only temporary workaround is to restart the firewall.

Unfortunately, after some time, the same issue occurs again. We would appreciate your support in investigating the root cause and providing a permanent solution.

Regards,

GeorgeZhong

Staff & Editor

Hi,

Based on the description, it could be due to underlying firmware issue. However, the FortiOS 7.0.17 is old and out of TAC support. It is suggested to upgrade to latest mature version FortiOS 7.4.9 for permanent solution.

In current FortiOS 7.0.17, if SSLVPN is slow again, instead of rebooting the FortiGate, we can try to restart the corresponding daemon by below commands as workaround:

diagnose sys process pidof sslvpnd <<<< Check process ID of "sslvpnd" daemon

fnsysctl killall sslvpnd <<< Kill and restart sslvpnd daemon

diagnose sys process pidof sslvpnd <<<< Check process ID of "sslvpnd" daemon again and confirm it has changed

Regards,

George

ialhusari93Author

Explorer

Hi George,

Thank you for your response, kindly note I am in HA mode how can I make sure that both firewalls got sslvpn reset daemon correctly without reboot

GeorgeZhong

Staff & Editor

Hi @ialhusari93 , we only need to reset the daemon on the primary unit since SSLVPN connection is handled by it only while secondary is just standby.

karvagear

New Member

If someone encounters this and absolutely need a user to connect right away ( and can't roll back) it somehow doesn't read past the first group when a user has several. it will work if the use only has the vpn group in 365 assigned to them.

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