I also did some more reading to find that it's really only Android that requires this intermediate CA to be presented in the chain, which is why the issue was only present on Android for FortiClient.
I found a Fortinet KB explaining that you have to take an extra step in the GUI to upload the intermediate CA, and then once you do, the SSL VPN portal will present the full chain to the client. I had concatenated the full chain before uploading to the FortiGate, and then wrongly assumed that the full chain was present, but upon closer inspection, I now see that it stripped out the intermediate CA and kept only the local cert. Configuring the FortiGate as an L2TP server 4. Adding firewall addresses for the user group and DMZ network 3.
Please try to update the ticket for any other queries. Creating a user group for Android users 2. FortiClient VPN is a free VPN app that lets you create secure virtual private network (VPN) connections between your Android device and a FortiGate firewall. 120.123 FortiGate Port 1 192.168.1.99/24 Internet SSL VPN Remote User (Android + FortiClient) Internal Network Creating an SSL VPN tunnel for remote users Go to. Please try to make test after fixing the chain issues. I ran your SSL VPN web portal through an SSL checker ( ) and received a warning that the certificate has chain issues. It appears that the issue you are seeing is because of chain issue with the particular certificate. My name is TAC Engineer 1, and I have been assigned to resolve your ticket. I'll detail option 1.: Open FortiClient VPN. conf' file or add a savepassword node to the ui section in your. modify the user configuration section within the. Please Note: Android OS v5.0 and newer are supported.Thank you for contacting Foritnet support. The TeamViewer remote connectivity cloud platform enables secure remote access to any device, across platforms, from anywhere, anytime. For FortiClient VPN 6.4.3, seems like you have to. – IPSec and SSLVPN “Tunnel Mode” – Two-factor Authentication using FortiToken – Client Certificates – English, Chinese, Japanese and Korean Language Support
The VPN features included in this free app are limited so upgrade to FortiClient – Fabric Agent for advanced functionality and technical support. This easy to use app supports both SSL and IPSec VPN with FortiToken support. Your connection will be fully encrypted and all traffic will be sent over the secure tunnel. FortiClient VPN App vimaldab teil luua turvaline VPN (IPSec vi SSL).
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