Hi @Clive_A
you are right. my description is poor. lets have a new try.
I am using the TP-Link equipment in controller mode. In former configuration all clients were in VLAN10 which is the Default LAN.
Internet Access was fine including the Sorround System.
Now I separated specific clients from die standard network in my case the Surround System (Receiver, Subwoofer, 2 Speakers)
into VLAN20 (Advanced Settings in edit Wireless Network) and gave them dedicated IP addresses via DHCP Reservation. So far so good.
Following the description of the Surround system I did set up mDNS/Bonjour and IGMP.
Also Ports 443 and 80 have to be open to the internet. From VLAN20 they are probably closed, I guess.
In this situation my surround system does not work.
To double check this, I build an EAP ACL rule, which allows these dedicated IP addresses mentioned above to access VLAN10.
and now it is working well.
So how I can open ports 443 and 80 from the WAN interface to VLAN20?
Wickie