4-5% packet loss after modem

[Sonorr]

I've been suffering from an insane ammount of disconnects ingame (WoW), so I started looking into it, and using MTR testing I found that there is a constant 4-5% packet loss at the second hop. My laptop is connected to my modem by cable, the first hop is the modem, after that it's ISP's node. I tried checking it on multiple modems (that all followed the same path), both on wifi and cable, the loss was there every time. I ran some tests on another laptop at the same time as my own, connected to the same modem, it had no packet loss.
Can it be that a windows 10 setting is causing this? It started late september (~27th). If not a windows thing, what else can cause device-specific problems? I tried selective startup, disabling every non-essential program, the packet loss appeared even then.

 

[bill001g]

Pretty much at this point you call the ISP and tell them to fix it. First check all your wiring inside your house. You want it all to be tightly connected and all contention appear to be dry and clean.

If you have a cable modem there likely is a screen that will give you the signal levels of the up and download channels. You will also see things like errors counts. You can search to find the acceptable levels of those values...it depends on a couple of things. Still all it will do is confirm that you have a crappy signal between you and the ISP.

There is a tiny chance it is your modem but only the ISP can tell for sure.

 

[Sonorr]

That was my first thought too, but let me highlight that I ran tests on 2 laptops (mine, which suffers from packet loss and a random laptop in the family). My laptop experienced 5% packet loss on second node, the other did not. They were connected to the same modem and the tests were started at the same time.

 

[bill001g]

The only way that can happen is if the loss is actually in the first hop and the tools you are using to track loss are telling lies.

Since your modem/router shares the 1 IP you get from your ISP to all the machine they all appear to the internet to be the same device. Anything beyond your router really has no way to know which laptop the traffic is coming from. So even if someone wanted to intentionally say drop data only from your laptop it would not be possible.

I would go use the simpler method of open multiple cmd windows and let continuous ping run to your router IP and the ISP first hop. I am going to suspect you will see loss in hop1......which still is strange if you use a ethernet cable.