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RADIUS connection problem

Applies to:
  • CrashPlan PROe


This article explains how to interpret the following alert, and how to respond to the alert.

The table below displays where the alert appears and where it can be configured. The alert text is different on the configuration page than on the alerts page or email.

Alert Text Location
Problem with connection to RADIUS server: server name Email and Alerts Overview of the administration console
RADIUS connection problem Settings > Notifications of the administration console


Warning - although this alert indicates a serious issue that should be addressed, it does not pose an immediate risk of data loss, security breach, or service interruption. If the problem is not corrected, however, more severe problems could occur.


This alert is triggered when a master server is unable to connect to the configured RADIUS server. The alert provides the hostname or IP address of the affected RADIUS server.

Possible effects

  • Users unable to authenticate via RADIUS
  • Users unable to backup or restore
  • Users unable to share files and folders using SharePlan

Before you begin

You should have an understanding of the RADIUS networking protocol.

Recommended solution

To resolve this alert:

  • Go to Settings > Security > RADIUS and validate the RADIUS server settings
  • Verify that the RADIUS server is powered on
  • Verify that the RADIUS server is reachable from the command line of the master server
  • Confirm that the RADIUS server responds on the configured port using telnet and ping

Acknowledge the alert

The alert will continue to appear on the Alerts Overview window in the administration console until you acknowledge the alert. To acknowledge the alert, go to Alerts, select the alerts you want to acknowledge, and choose Acknowledge from the action menu.

External resources


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