> Source: [sk104600](https://support.checkpoint.com/results/sk/sk104600)

# sk104600 - Policy installation on 1100 appliance fails when Application Control blade is enabled

| Property | Value |
|----------|-------|
| Solution ID | sk104600 |
| Date Created | 2015-04-24 |
| Last Modified | 2017-09-04 |
| Technical Level | Advanced |
| Products | Security Gateway, Spark Firewall (Locally Managed) |
| Versions | R82.10, R82, R81.20, R82.00.X, R81.10.X |

## Symptoms

- * Policy installation on Centrally Managed 1100 appliance fails when Application Control blade is enabled.

* *$FWDIR/log/sfwd.elg* contains the following error messages:

  * `unsupported app name KSS AV`
  * `sfw_load: Failed to add CMI signatures`
* Fetching local policy under debug ('`fw -d fetch localhost`') fails with the following error messages:

  ```
  
  Installing Security Policy... 
  appi_cmi_handler_read_signatures_from_cache: <XXX>!=<YYY>
  fw_atomic_cmi_add: cmi_loader_install_policy failed.
  sfw_load: Failed to add CMI signatures. sfw_load: Error loading security policy
  Error loading policy.
  ```

## Cause

Corruption in the */opt/fw1/appi/update/sigs.cache* file.

## Solution

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