but, what kind of package is it, or better what kind of service? So I can turn it off if not needed.

When I check `dmesg` at my devices that are using UFW I got a lot of logs ↓ [45498.960447] [UFW BLOCK] IN=eth0 OUT= MAC=01:00:5e:00:00:01:a8:6e:84:3b:14:4e:08:00 SRC=192.168.0.1 DST=224.0.0.1 LEN=32...

@Marvin_S got the email, thanks!

@Marvin_S thanks for your reply! Devices connected to the ports are 2 Sony smart TVs (I don't know model, but one is 2023 year model and one is 2018) , HP Pavillion Gaming 15 Laptop and LSW6-GT-8NS...

The router is switching speed for every ethernet port as it likes. Sometimes it is 1000, sometimes 100, sometimes 10 for any of the LAN ports. Cables are all new CAT6. Is there a way to force router...