topic Harmony SASE client with a particular error. in SASE and Remote Access

Harmony SASE client with a particular error.

jgonzalezv — Thu, 15 May 2025 17:08:43 GMT

Hello community

I'm receiving the following error message in the Harmony SASE client: "Certificate does not match - cannot create a secure connection." It's important to note that this is happening with an organization's internal clients, which have restrictions on AD, browsing, and antivirus. This error doesn't occur with external users using the same client. Perhaps someone has experienced this and knows how to resolve it.

Re: Harmony SASE client with a particular error.

the_rock — Thu, 15 May 2025 17:46:39 GMT

Did you make sure to install cert on endpoint? Same like you would for ssl inspection.

Andy

Re: Harmony SASE client with a particular error.

_joel — Thu, 15 May 2025 19:59:12 GMT

Hello

Check your device posture profiles configured on SASE. You might have a specific rule that requires a certificate. It may have a dedicated Device Posture Check for internal users based on a group

Re: Harmony SASE client with a particular error.

Levin138421 — Thu, 05 Feb 2026 20:53:50 GMT

Hey Jgonzalezv,

Were you able to fix this issue? We are seeing the problem on our environment as well. Let us know if you have a solution for this.

Re: Harmony SASE client with a particular error.

the_rock — Fri, 06 Feb 2026 15:26:54 GMT

What client version?

Re: Harmony SASE client with a particular error.

simonemantovani — Fri, 06 Feb 2026 16:15:34 GMT

Did you try to perform the sign in to Harmony SASE? I ask you because in the screenshot the Harmony SASE app is not still active, so I wonder if completing the sign in procedure you receive the same error or not.