so we have 2 clients:
client A connects to a VPN server vpn.mydomain.com (Windows server 2019 with SSTP and IPv4 only)
client B connects to the same server, i.e. vpn.mydomain.com with SSTP
client A wants to call client B within Microsoft Teams. A sceen shows up and it is ringing.
client B doesn´t see anything. There´s no ringing.
client A stops calling client B
Now client B sees a missing call from client A
It doesn´t matter which client, as long of one of the clients is connected to the VPN server vpn.mydomain.com and the other client is not connected to the same VPN server, the call works without any problems. If both clients are connected concurrently it fails.
Has anyone ever had such a problem?