Open PowerShell on the Windows Asset in question. Type in both the commands below.
Type in both the commands below, substituting “IP Address of QR Host” with the IP of your on-prem QR VM eg:
Test-NetConnection -ComputerName 192.168.222.242 -Port 514 -InformationLevel “Detailed”
Test-NetConnection -ComputerName "IP Addressof QR Host" -Port 514 -InformationLevel "Detailed"
Test-NetConnection -ComputerName "IP Addressof QR Host" -Port 8413 -InformationLevel "Detailed"
This will determine if connectivity on the 2 required ports is present.
If it is not, you will need to revisit your firewall rules or your inter-VLAN traffic rules.