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FueledByCoffeeDXB
FueledByCoffeeDXB
New Member
September 17, 2022
Question

SSL VPN Certificate Error

  • September 17, 2022
  • 2 replies
  • 11063 views

Activated SSL VPN and followed the steps from the cookbook. However, I am getting an error before I can connect. If I install the cert and chose yes, it will connect and work as normal. But if you turn your PC off and retry, the error will re-appear again!

 

ERROR: this page requires a secure connection which includes server authentication (Windows)

 

I have tried creating an acme cert too but it keeps on failing which is annoying, now I can't use the 2 domains we have because it is saying that those were already used.

2 replies

rmreddy
Staff
rmreddy
Staff
September 18, 2022

Hi,
Follow the below link how to purchase and import the certificate
https://docs.fortinet.com/document/fortigate/6.2.3/cookbook/825073/purchase-and-import-a-signed-ssl-certificate

 

After importing the certificate, you can use that certificate in SSLVPN settings.
While connecting to VPN make sure to connect using domain and make sure the domain is resolving to the IP of fortigate public IP

fostercarly
fostercarly
New Member
November 1, 2022

This issue typically happens for a 2-Way TLS, when the certificate sent by the client is expired. In a 2-way TLS, both client and server exchange their public certificates to accomplish the handshake. The client validates the server certificate and the server validates the client certificate. During the TLS handshake if it is found that the client certificate is expired, then the server will send 400 Bad request with the message "The SSL certificate error". The solution for this problem is that procure a new certificate and upload the certificate

 

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