Issue: The OWS workstation doesn't show the servers at the Simatic Shell and vice versa

We have the following setting:

• OWS workstation

1. Windows 11
2. IP = 10.160.22.15/22

• Servers

1. Windows 10 inside VMs
2. IP = 10.160.23.11/22 & 10.160.23.12/22

Common Settings for Servers and OWS: 

3. Firewall = off 

4. WinCC 7.5 SP2 Runtime = OWS has communication with Servers and is running properly. 

5. lmHosts file > Set for Servers & OWS (IP Comp Name #PRE) & recopied w/o ".Sam" 

6. Servers' IP addresses are added at the Simatic Shell multicast proxy 

7. At Simatic Shell Settings > Remote Communication is activated 

8. At SImatic Shell Settings > Only 1 network adapter on the selection, and is selected 

9. At Servces > Function Discovery Provider Host = Automatic & Running 

10. At Servces > Function Discovery Resource Publication = Automatic (Trigger Start) & Running 

11. WinCC Server Data is mapped and communicating