Is UPnP a rubish protocol ???

[lyapounov]

(09-03-2022 11:49)simoncn Wrote:  If a device drops off after approximately 30 minutes, this is because UPnP "alive" messages are being blocked by your network. This is very commonly caused by IGMP snooping being enabled but not configured correctly. It is quite difficult to configure IGMP snooping correctly, so the best solution for most people is to disable IGMP snooping. This means you need a router that can do this, either by default or with a configuration option.

My router is a D-Link Archer C1200, then a few Deco Mesh but all in passthru mode

The only related parameters I can change are:
IGMP Proxy: not enabled
IGMP Version: V2 or V3
IPTV/VLAN: IPTV not enabled
Then IPTV mode with a list of providers. But It is not enabled

Does not says anything about IGMP Snooping, but again IGMP Proxy is not enabled ?

Thhx !