> Source: [sk176372](https://support.checkpoint.com/results/sk/sk176372)

# sk176372 - "Untrusted certificate" error is received in the User Check portal after a change of the default Certificate for Mobile Access Portal

| Property | Value |
|----------|-------|
| Solution ID | sk176372 |
| Date Created | 2021-11-16 |
| Last Modified | 2025-08-13 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82, R81.20, R81.10 (EOS), R81 (EOS) |
| OS | Gaia |

## Symptoms

- * "Untrusted certificate" error is received in the User Check portal after a change of the default Certificate for Mobile Portal.

* Internal users do not receive access to the User Check portal after the Security Gateway sends them the Mobile Access portal Certificate.

* <br />

  Identity Collector client based on a Windows machine and connected to another IDA Gateway (in the same management) is disconnected/flapping with an "Untrusted Certificate" error.

  <br />

## Cause

The Mobile Access Blade Certificate is the default one, and it is assigned to any portal used on the Security Gateway.

## Solution

This solution requires authentication. Please log in to view the full solution.

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