Printing from SAP to device registered with Universal Print

Hi
recently we have bought some Canon printers with native support for Universal Print and registered on Azure

On a local Print Server W2022 we have added these printers with a service account authorized to access on Azure

On this Print Server is running the service SAPSprint and it is running with the same service account used to register the printers from Azure

Then we have the ERP SAP where we created printer name for Canon

So the workflow is the following:

SAP --> Print Server W2022 with SAPSprint --> Azure Cloud with Universal Print --> INTERNET --> physical device Canon

Everything work well if we are connected to the Print Server W2022. As soon as we sign out from the Print Server or we reboot it then the communication from SAP is broken

Do you have any idea what is wrong?

Thanks