> Source: [sk113260](https://support.checkpoint.com/results/sk/sk113260)

# sk113260 - VPND CPU usage at 95-100% for a few minutes during/after policy installation

| Property | Value |
|----------|-------|
| Solution ID | sk113260 |
| Date Created | 2016-09-08 |
| Last Modified | 2021-02-03 |
| Technical Level | General |
| OS | Gaia |

## Symptoms

- * VPND CPU usage at 95-100% for a few minutes during/after policy installation
* In *VPND* debug during policy installation the follow lines are shown:  
  match_user_ip_to_rule_and_collect_groups: group  
  is_relevant_rule: check rule no. XXX  
  match_user_ip_to_rule_and_collect_groups:  
* Remote Access user traffic is dropped for several minutes following policy install: fw_log_drop_ex: Packet proto=6 x.x.x.x:56349 -\> y.y.y.y:80 dropped by vpn_inbound_tagging_ex Reason: check_userc_tables returns -1;

## Cause

**Environment:**

* Gateway is defined as a Remote Access Gateway.
* Legacy LDAP Groups are used and configured in the rulebase and there is a large number of them (more than 150).

During Policy installation, the *VPND* process reloads the VPN policy and matches all of the user rules to the existing connected users. The combination of the number of users and number of rules that have a legacy LDAP group in the source increases significantly the *VPND* queue (tasks to do), and as a result *VPND*consumes high CPU.

The impact can be experienced as one (or a combination) of the following:

* Latency/traffic loss to VPN traffic
* Remote Access disconnections
* IKE negotiation failures
* Remote Access authentication failure

## Solution

This problem was fixed. The fix is included in:

* [Check Point R80.40](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk160736)

Check Point recommends to always upgrade to the most recent version   
([upgrade Security Gateway](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=overview&product=435) / [upgrade Security Management Server](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=overview&product=184) / [upgrade Multi-Domain Security Management](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doShowproductpage&productTab=overview&product=166)).

<br />

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 [CPinfo files](http://supportcontent.checkpoint.com/solutions?id=sk92739) from the Security Management Server and Security Gateways involved in the case.

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

<br />

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