SSL VPN issues after Windows Update (KB2267602)

[MarcelKruder]

Is anyone else facing issues with SSL VPN after installing today's windows Security update? I have multiple Clients not beeing able to connect to any network resources after this security update. Seams like it's messing up the routing or destroying the driver. Searching for a fix right now. Not able to ping/trace or lookup any network resources. 

[navellano]

Hi MarcelKruder,

Good day! 

According to the issue description, you are unable to connect to any network resources using SSL VPN; could you please clarify if the user can establish an SSL VPN connection but cannot access any internal network resources?

You can use these SSL VPN debug commands to further investigate any issues or errors.

# diag debug app sslvpn -1

# diag debug enable

Reference: https://community.fortinet.com/t5/FortiGate/Technical-Tip-FortiGate-debug-SSL-VPN-daemon/ta-p/214433