User ID Agent: Connecting (The stub received bad data)


Changes to the LIVEcommunity experience are coming soon... Here's what you need to know.

L4 Transporter

User ID Agent: Connecting (The stub received bad data)

Hi Community,


I have a problem with a User ID Agent issue.

I'm sure it's not related to the Palo Alto software - more a microsoft thing, but maybe one of you guys experienced the same:


User-ID Agent-Server: Windows Server 2012R2

User ID Agent 8.1.8-3


We configured the User ID Agent in the morning and during the day, the Microsoft team did a domain upgrade from functional level 2008 to functional level 2019

When the domain was on functional level 2008 we received ip user mappings, after the upgrade, we got the message "stub received bad data" when connecting to the AD servers.


Is this an issue with Server 2019?

The agent itself is installed on Server 2012 but the target DCs are on 2019.


Looking forward to your feedbacks


Best Regards



Best Regards
Tags (2)
Community Team Member

Hi @Chacko42 ,


This might help you :

which-servers-can-the-user-id-agent-monitor ?


It looks like the agent can't monitor 2019 servers yet.


Cheers !


Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!

The LIVEcommunity thanks you for your participation!