A: Smart card redirection is disabled or misconfigured. Enable "Smart card redirection" in your RDP file or Group Policy (Step 5).
Windows relies on a background service to manage smart card operations. If this service is disabled, the reader will fail to function. the smart card reader is not configured properly install
If you are on a work domain, Group Policy may block smart card reader configuration. You need local admin rights. A: Smart card redirection is disabled or misconfigured