---
sourceDocument: Australia ServiceNow AI Platform Capabilities
sourceDocumentLink: https://www.servicenow.com/docs/r/australia/servicenow-platform

 Release :

    - australia

ft:locale :

    - en-US

ft:publication_title :

    - Australia ServiceNow AI Platform Capabilities

ft:clusterId :

    - platcap

bundleId :

    - platcap

workflow :

    - Platform


---

# Reregister MID Servers to restore IPKI authentication

# Reregister MID Servers to restore IPKI authentication {#ariaid-title1}

Release version: Australia  
Updated October 29, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Generate a registration key and use it to get a new IPKI certificate for an existing MID Server.

## Before you begin

Role required: admin or agent_admin

## About this task

Reregister a MID Server when its IPKI certificate has expired, been revoked, is no longer valid, or when the keystore is corrupted.

A registration key lets the instance issue one new certificate. The key is single use and expires within 24 hours of creation.

## Procedure

1. On your instance, navigate to WorkspacesITOM Infra Services Workspace.
2. Select the MID Servers icon in the navigation panel.
3. On the MID Onboarding tab, select the Generate single-use registration key link.
4. On the Select MID Server user to generate key dialog, in the MID Server user list, select the MID Server user for which you're generating the key.
5. Select Generate registration key.
6. Copy the registration key and the sys_id of the user.
7. On the MID Server host, open config.xml in the agent folder and set these parameters:  

       <parameter name="mid.ipki.enabled" value="true"/>
       <parameter name="mid.ipki.registration_key" value="<registration_key>"/>
       <parameter name="mid.ipki.user" value="<user_sys_id>"/>

8. Restart the MID Server.  
   The MID Server requests a new certificate with the key and installs it.
{#mid-reregister-ipki-authentication__steps_mid_reregister_ipki}

## Result

The MID Server has a new IPKI certificate and authenticates to the instance again. On the MID Server record, the Validated field is set to true and the Status field is set to Up.

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