> Source: [sk111630](https://support.checkpoint.com/results/sk/sk111630)

# sk111630 - "Unable to verify the SMS provider certificate. Failed to send an SMS with a verification code." error when Mobile Access Dynamic ID authentication fails

| Property | Value |
|----------|-------|
| Solution ID | sk111630 |
| Date Created | 2016-05-23 |
| Last Modified | 2020-12-17 |
| Technical Level | Advanced |
| OS | Gaia |

## Symptoms

- * Users unable to authenticate to Mobile Access blade using Dynamic ID.
* SmartView Tracker shows the following log: "Unable to verify the SMS provider certificate. Failed to send an SMS with a verification code."

## Cause

The root CA of the SMS provider is not saved on the gateway

## Solution

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

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