Troubleshooting A2A Client Registration Failure with Error Code 445

Products

• CA Privileged Access Manager (PAM)

Issue/Introduction

A2A (Application-to-Application) client registrations fail with return code 445 ("Cloakware Issue [445 null null]"). This error indicates the A2A client is unable to retrieve its client key during registration.

Cause

This error is typically caused by a massive backlog in the cspm.local_commandproxyqueue table within the appliance database. New registration requests are appended to the end of this queue and processed in a FIFO (First-In, First-Out) manner. If the queue contains a significant volume of stale or invalid requests, new legitimate registration requests remain stuck behind the backlog, timing out before they can be processed and resulting in the 445 error.

Resolution

Please open up a support case to further investigate this issue