> Source: [sk42184](https://support.checkpoint.com/results/sk/sk42184)

# sk42184 - RADIUS authentication fails in Remote Access VPN, Identity Awareness, Mobile Access or Smart Console admin login

| Property | Value |
|----------|-------|
| Solution ID | sk42184 |
| Date Created | 2009-06-27 |
| Last Modified | 2024-12-18 |
| Technical Level | Advanced |
| Products | Security Gateway, Security Management Server, Multi-Domain Security Management Server |
| Versions | R82, R81.20, R81.10 (EOS), R82, R81.20, R81 (EOS), R81.10 (EOS), R81 (EOS), R81 (EOS), R81.10 (EOS), R81.20, R82 |
| OS | Gaia |

## Symptoms

- * SmartConsole or SmartView logs shows that the Security Gateway drops RADIUS authentication:

  `Reason: client Encryption: RADIUS servers not responding`
* The `$FWDIR/log/vpnd.elg` file on the Security Gateway or the `$FWDIR/log/fwm.elg` on the Security Management Server or the `$MDS_FWDIR/log/mds.elg` on the Multi-Domain Security Management Server contains these errors:

  * `RADIUS attribute 80 not recognized, response dropped`
  * `attr_get_from_buf: unexpected attr len. probably an unknown RADIUS attr (type=80).: Cannot allocate memory`
* Traffic capture on the Security Gateway or Security Management Server shows that during RADIUS authentication, there are the "`Deep Net security unified Authentication package`" replies with the RADIUS attribute 80.

* After installing the Microsoft KB5040268 or Microsoft KB5040430 on the Microsoft RADIUS server:

  * The login with a RADIUS user fails in SmartConsole
  * The login with a RADIUS user fails in a VPN client

## Solution

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