Solve the Lost Packet problem

[viniciusxiss]

So I've been having problems with my DSL connection for a while now (no, they refuse to get optic fiber here), and after trying many things I've come to a deadend.
I've been experiencing packet loss for the longest time now, along with random disconnects. Many tech support later where they changed all the line cables/etc and switching the modem model to one of the best possible aparently, I still have this problem:

After switching modems (happened 2 or 3 days ago), it got a little better. Its still having a bunch of packet loss but the main annoying thing now is when it gets a loss so big (more than 1kping) where everything is unusable and I have to restart the modem, where it comes back "ok" but soon enough starts getting loss again.
The one thing that seems to leave it stable is either connecting the modem straight to my computer, or to leave only my pc and other computers ethernet cables on (meaning I take the switch cable off). Its actually pretty incredible where I have 1kms constant, and I just disconnect the switch cable and I instantly get 30ms.
So I thought: my Switch is broken or malfunctioning, so I got a new one. And its getting the same shit.
So I tried to connect only the switch with nothing connected on the switch, and I'd still get packet loss. I'm out of ideas to try, so I'm asking yours.
As far as I know, the setup in my house is like this:
Modem has 4 entries: 2 are lan cables connected to the near computers, one is connected to a switch nearby and another to a switch 2 floors under.
The switch nearby has another 4 entries that goes to a few other computers and a signal spread (I think) on the top floor.
The switch 2 floors under is connected to another 2 computers.

Please send halp, I've been going insane.

 

[gbb0330]

what do you know about 189.112.10.54, do you have any control of the equipment, the internet connection or everything in between you and 189.112.10.54?

what makes you think the problem is on your end?

 

[SinxarKnights]

Pinging the target tells us nothing other than that IP exist.

What is that IP for? Where is the packet dropped when you trace route? What is the physical location of the router that is dropping the packets?

If it isn't in your house or your ISP's network, there is nothing you can do other than keep waiting. Meaning you can't force your traffic to go around the bad router in the chain even though one likely exist.

 

[viniciusxiss]

erm.... what?
The ping is google.com, I only use it to test my connection speed because its an easy visualization.
For instance, when I try to play a game and I'm lagged because of packet loss, If i ping google.com it'll show high ms as well.

 

[SinxarKnights]

If it is showing high ping, that isn't packet loss. That is network saturation. Still though, need to trace route it to see where the random packets are getting dropped.

Have you monitored the traffic on the network to see what is hogging it all?

Reading your post again, I am going to go with something on your network is downloading.

 

[Mister_MO]

You have dsl connection, so go into your modem and look up for SNR (signal to noise ratio), this is quality of your line, higher number means better line. If you have this number below 6, its quite bad. To increase this you need as short cable to dsl socket as possible and don't lead it near (10 cm and less) power lines. Also get rid of dsl splitter if you are using it. Next look up for path mode, fast mode have lower latency but is more unstable, interleave depth increase latency at cost of ping, you get about 10-20 more. Path mode can only your provider change. Some modems have stability adjustment, it can be called differently but what it does is basically increase SNR at cost of speed. And next look for how many crc errors you get, if its anything high, like 10 or more per hour, your line is bad, but this can only your isp fix if you have everything correct on your side.

 

[viniciusxiss]

So none of these really seem like answers.
You don't seem to be taking into account that the modem is fine, the problem lies when I connect the switch into it (both new and old ones).
Also, I'm not remotely close to tech savy on networks, so when you say stuff like "have you tried monitoring the traffic" or "the network is downloading", it doesn't really help, you have to guide me trough it.

 

[Mister_MO]

Either you have bad switch, cables, modem, some sort of network conflict or some device hooked up that is downloading/uploading. So disconnect everything from all switches and start connecting one thing at time and look on ping. But without at least some basic knowledge about networks problem diagnosis its quite hard. Btw by switch you mean dumb lan switch or router/access point with wifi?

 

[SinxarKnights]

So none of these really seem like answers.
You don't seem to be taking into account that the modem is fine, the problem lies when I connect the switch into it (both new and old ones).
Also, I'm not remotely close to tech savy on networks, so when you say stuff like "have you tried monitoring the traffic" or "the network is downloading", it doesn't really help, you have to guide me trough it.

What i mean is. There is downloading going on. Somebody is watching netflix/youtube using torrents etc. I am 100% sure this is the issue here.

Reasoning:
The issue is intermittent.
When you restart your router/modem it goes away then returns.
You have high ping.
You have a slow internet connection, not enough bandwidth for everyone.
Replacing the equipment had no effect.
Connecting directly to the modem makes it go away. (means it isn't your PC, but somebody else's)

 

[viniciusxiss]

no, that is not the issue.
I'm well aware of that kind of lag and it'd be pretty obvious if that was it.
This happens when I'm alone on the internet at 4 am, or if there are 6 ppl online.
Also the lag coming from that sort of stuff is "bareable".

 

[SinxarKnights]

no, that is not the issue.

You are the networking professional. Good luck.

 

[viniciusxiss]

No I'm not, you just sound like the technicians that come in here trying to fix it.
I thought that it was a nobrainer that the problem would not be as simple as that, and I wasn't even offending you before, was just stating that that was NOT the problem.

 

[Mister_MO]

Can you borrow router with network monitoring option, make all traffic go through it and make sure you don't have something else downloading? I personally have asus router and it can monitor whole traffic for each device and total bandwidth for whole network, so try getting something like this and make sure you don't have something leaching.
And are you sure you have no wireless network that someone can use and you don't know about it?