ET only open, UDP Report

[Lenovo]

can someone explain to me, why do I have all these things open?
disturb the connection or is it normal?

 

[Xernicus]

That's the way networking works, you need to have ports open and packets sent to keep the connection "alive".
Half of those are loopback. Netbios? Technically legacy, but not hurting anything. Domain on port 53? That's DNS- absolutely required. Bootps... that's bootstrap for DHCP. SSDP is uPnP.

But that's nothing, it's not going to interfere with anything. Lots of ports open would be something like several hundred to a thousand. A modern day line and high-end modem can handle something like 8000 connections at once. Most of the time you won't even be pushing 100.
 

[DoubleDragon]

You would be surprised what runs that you don't know about. Should try glasswire.com fairly simple low key app no drag on the internet helps to catch the creepy crawlers that some firewalls just don't catch. Plus the overlay monitor is ok for gaming.