We had something similar recently, with Server 2022 and Bartender server.
The printer had to be installed under the AD Service Account that the Bartender app is installed under, on that app server.
Then the calls to our print server, where the printer is pointed to in the app itself, worked properly. Otherwise, there would be a 3 min timeout before even the labels from the app would print.
So try to install it locally under the account that the SAP app was installed under.
Try to reset the printer, and the web server via the printers web gui if possible also.
Our issue was with the older Xi4's not the newer ZD621.
Our print server is Win Server 2022 Core.
