Packet Loss - need help figuring out where its happening

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JoeVanWeedler

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Apr 6, 2014
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I've been getting packet loss lately and cannot figure out the problem. I've tried 2 different routers, 3 different wireless adapters in different pci slots and 1 a USB adapter. I've tried a wired connection through the router and directly into the modem. I have all drivers, software and firmware updated. I have run several different anti-malware programs several times. I have wiped my hard drives and reinstalled my OS. I had my ISP come and check all the cables and replace their modem.

I have run several pathpings and tracerts. I ran a pathping to yahoo several times and got 0% packet loss on all hops the first time, then got sporadic 1-2% on a few hops in tests after that. Then I ran them to blizzards diablo 3 servers, the game i get the most lag in and in 3 tests i got 97, 98, 99% packet loss once it hit blizzards first server. Is that because of their security or bad connection?

The tracerts were very erratic. the first one had all normal pings on all hops. the second test had big spikes on hop 4, the third test was all normal and the 4th test had 1 ping spike on hop 12 and hop 13 was 102, 206, 367.

i just ran another one and it was all normal until hop 14 which spiked up to 134, 211, 216.

is this an isp issue? blizzard issue? something i can fix myself?

thanks if you read all that and big thanks if you can help, im at a loss right now.
 
Solution
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What you want to do is open cmd widows and leave continuous pings running to the first couple hops in the trace. Then when you get ingame lags you want to see if anything is in these.

You really can only do something about the first couple hops. The first one or two are your house and the connect to your house which you have alot of control over. The next few are likely inside your ISP network so to a point you can yell at them because you are their customer. Anything beyond that even if you could find the problem you can't get it fixed. You going to call up time warner and tell them they have a problem with their level 3 connection in a particular city. Even if you could find a tech that had a clue they would not even...
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smorizio

smorizio

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Jan 22, 2010
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if it one game or server it could be a bad server between you and the game. if you think it your isp try using open dns or google dns to see if anything changes. if not try starting the game with your pc anti virus off and check your router see the the port for the game is open.
 
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JoeVanWeedler

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Apr 6, 2014
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tried opendns, still the same problem. all the ports are open and anti virus and firewalls are all off. it happens on everything connected to the internet whether by wire or wireless.
 
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smorizio

smorizio

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Jan 22, 2010
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call your isp speak to a level 2 or level 3 tech ask them if they can set your modem to use another of your local server to see if one near you is over loaded or has an issue. also do this turn off the cable boxes from the wall. see if one of them causing any issue. when the tech came did they change any of the splitters or where the cable modem was connected in the home?? comcast puts the cable modem on the first spillter by itself. to many spilliters or an old one can cause an issue. the other issues is leachers is your wifi closed. if there lot of homes go in change the admin password and wep key.
in the wifi router see how many people are on your rig.
 
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bill001g

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Aug 9, 2012
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What you want to do is open cmd widows and leave continuous pings running to the first couple hops in the trace. Then when you get ingame lags you want to see if anything is in these.

You really can only do something about the first couple hops. The first one or two are your house and the connect to your house which you have alot of control over. The next few are likely inside your ISP network so to a point you can yell at them because you are their customer. Anything beyond that even if you could find the problem you can't get it fixed. You going to call up time warner and tell them they have a problem with their level 3 connection in a particular city. Even if you could find a tech that had a clue they would not even acknowledge the issue since you are not their customer.

You have to be careful about reading too much into packet delays and loss. Routers in the path tend to prefer to pass actual traffic they will only get around to responding to ping and traceroute when they have extra time. A ping loss that is real will show problems starting at a certain hop and then continuing on in all hops past that point.

What is very bad about traceroute is it lies. You need to actually do traceroutes from both ends. Many times traffic run asynchronously and you will not even see the valid information on the site that is cause the problem....this too is why ISP will not bother to talk you about this.

 
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