> Source: [sk181591](https://support.checkpoint.com/results/sk/sk181591)

# sk181591 - Endpoint Clients disconnect from Policy Server after server upgrade

| Property | Value |
|----------|-------|
| Solution ID | sk181591 |
| Date Created | 2023-10-31 |
| Last Modified | 2024-05-31 |
| Technical Level | General |
| Products | Endpoint Security |
| Versions | Cloud, R82.x, R82.20, R82.10, R82, R81.20 |
| OS | Gaia |

## Symptoms

- * All Harmony Endpoint Security clients are connected to Primary server.
* You may find the following message in $UEPMDIR/logs/server_messages.log on Policy server:

  ```
  Caused by: java.lang.ClassCastException: com.checkpoint.uepm.log.event.DeployedPolicyEvent incompatible with com.checkpoint.uepm.log.event.AgentLogin
  ```

## Cause

The cause is that DeployedPolicyEvent class was not handled in the CPSYNC logic.

## Solution

**Note:**This issue was fixed. The fix is included in:

*
  * **[Jumbo Hotfix Accumulator for R81.20](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.20/R81.20/R81.20-List-of-all-Resolved-Issues.htm) starting from Take 54**

If you choose not to upgrade, Check Point can supply a Hotfix. [Contact Check Point Support](https://www.checkpoint.com/support-services/contact-support/) to get a Hotfix for this issue.  
A Support Engineer will make sure the Hotfix is compatible with your environment before providing the Hotfix.  
For faster resolution and verification, please collect [EPCPinfoSRV](https://support.checkpoint.com/results/sk/sk158572) file from the Endpoint Management Server and each Endpoint Policy Server involved in the case.  

<br />

**Hotfix installation instructions:**   
Refer to [sk168597 - How to install a Hotfix.](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk168597)

---

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