Not detecting UPNP devices

[ljsquare]

Problem/Motivation

Somehow the add-on won't detect any devices (Sonos). But when I install AirConnect on another computer, it will detect my devices.
I've double checked the binding of the network interface and it's correct. And there are no errors logged.

Logfile on HA:
[12:29:07] INFO: Starting the AirSonos server...
[12:29:08.557] main:1386 Starting airupnp version: v1.8.3 (Feb 1 2024 @ 01:10:35)
[12:29:08.561] Start:1094 Binding to iface 192.168.3.10:0 [enp3s0]
[12:29:08.562] Start:1133 Starting pico HTTP server on port 55343

Logfile on a Macbook:
[12:34:25.014] main:1386 Starting airupnp version: v1.8.3 (Feb 1 2024 @ 01:10:47)
[12:34:25.015] Start:1094 Binding to iface 192.168.3.183:0 [en0]
[12:34:25.015] Start:1133 Starting pico HTTP server on port 52218
[12:34:25.041] AddMRDevice:1020 [0x130008000]: adding renderer (Samsung The Frame) with mac BBBB5FBB94A3
[12:34:25.050] MasterHandler:638 [0x130008000]: subscribe success
[12:34:25.156] AddMRDevice:1020 [0x130009fd8]: adding renderer (Badkamer) with mac BBBBF876EB37
[12:34:25.174] MasterHandler:638 [0x130009fd8]: subscribe success
[12:34:25.196] ProcessEvent:447 [0x130009fd8]: UPnP Volume local change 15:15 (master)
[12:34:25.345] AddMRDevice:1020 [0x13000bfb0]: adding renderer (Woonkamer) with mac BBBB8ADD54CA
[12:34:25.357] MasterHandler:638 [0x13000bfb0]: subscribe success
[12:34:25.362] ProcessEvent:447 [0x13000bfb0]: UPnP Volume local change 16:16 (master)
[12:34:25.523] AddMRDevice:1020 [0x13000df88]: adding renderer (Slaapkamer) with mac BBBBDAD2D0CA
[12:34:25.540] MasterHandler:638 [0x13000df88]: subscribe success
[12:34:25.545] ProcessEvent:447 [0x13000df88]: UPnP Volume local change 15:15 (master)
[12:34:25.569] ProcessEvent:447 [0x130008000]: UPnP Volume local change 0:-1 (master)