---
sourceDocument: Australia ServiceNow AI Platform Administration
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/platform-administration

 Release :

    - australia

ft:locale :

    - en-US

ft:publication_title :

    - Australia ServiceNow AI Platform Administration

ft:clusterId :

    - platadm

bundleId :

    - platadm

workflow :

    - Platform


---

# IP authentication error

# IP authentication error {#register-target-instance-3__troubleshooting-title}

Release version: Australia  
Updated March 12, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Troubleshoot a IP authentication error that occurs while registering a target instance

## Condition

A failure to authenticate an IP address prevents the target instance from being registered.  

## Cause

The IP address for the target instance is outside of the IP range.

## Remedy

If the target instance uses IP range based authentication, it must enable the IP range <kbd class="ph userinput">10.0.0.0/10.255.255.255</kbd> to communicate on a local network. See [IP range based authentication](https://www.servicenow.com/docs/access?context=c_IPRangeBasedAuthentication&version=australia&pubname=australia-platform-security&ft:locale=en-US).