PCA Configuration Issue with AWS Load Balancer

Hi everyone,

We’re encountering an issue while configuring the Password Capture Agent in our infrastructure.

We have a setup with two nodes running the AppServer behind an AWS Application Load Balancer.
When accessing the application via browser through the Load Balancer, everything works as expected — we can log in, view logs, and interact with the application normally.

However, when attempting to configure the PCA component via the Load Balancer, the wizard fails with an error (attached pic).
On the AppServer side, we observe the attached log entries:

2025-10-20 15:55:30.7687  INFO  (AppServer): Could  not  find authentication  data  for session  jSQugbnqF6QbSHU3KQ5d,  it may  have  expired.
2025-10-20  15:55:30.7687  ERROR (ObjectLog  Global):  [ServiceStack.HttpError] 401
ServiceStack.HttpError:  401

As part of our troubleshooting, we disabled one of the two AppServer nodes.
In this configuration, the PCA wizard completes successfully, which suggests the issue may be related to session persistence across nodes.

We’ve attempted to configure sticky sessions on the AWS Load Balancer using both application-based cookies (specifically the ss-id) and Load Balancer cookies, but the issue persists.

Could you please advise on the correct Load Balancer configuration to support PCA setup in a multi-node AppServer environment?
Any guidance on session handling or specific cookie settings required for PCA would be greatly appreciated.