> Source: [sk105018](https://support.checkpoint.com/results/sk/sk105018)

# sk105018 - Not possible to enable SecureXL because "Use Sticky Decision Function" option is greyed out in cluster object

| Property | Value |
|----------|-------|
| Solution ID | sk105018 |
| Date Created | 2015-03-05 |
| Last Modified | 2015-08-25 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |
| OS | Gaia |

## Symptoms

- * Policy installation on cluster shows that Acceleration is disabled because Sticky Decision Function is enabled on the cluster.

* Output of '*fwaccel stat*' command on cluster members shows that SecureXL is disabled by the firewall.

* "*Use Sticky Decision Function* " checkbox is greyed out in cluster object ('`ClusterXL`' pane - '`Load Sharing`' mode is enabled - click on '`Advanced...`' button):

  [![](https://sc1.checkpoint.com/sc/SolutionsStatics/sk105018/Use_Sticky_Decision_Function1503060053.png)](https://sc1.checkpoint.com/sc/SolutionsStatics/sk105018/Use_Sticky_Decision_Function1503060053.png "Click the image to see it in full size in a new tab/window")

## Cause

Mobile Access blade is enabled in this cluster.

Sticky Decision Function is required by Mobile Access blade. Therefore, this checkbox is greyed out.

## Solution

* If Mobile Access blade is ***not*** used on this cluster:

  1. Go to '`General Properties`' pane of cluster object.
  2. Clear the box '`Mobile Access`'.
  3. Go to '`ClusterXL`' pane - in '`Load Sharing`' mode section, click on '`Advanced...`' button.
  4. Clear the box '`Use Sticky Decision Function`'.
  5. Click on '`OK`'.
  6. Install policy.

  <br />

  <br />

* If Mobile Access blade ***is*** used on this cluster:

  No fix is required; the system is functioning as designed.
  Refer to [sk101539 - ClusterXL Load Sharing mode limitations and important notes](http://supportcontent.checkpoint.com/solutions?id=sk101539).

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