High ping problem

[Swin123]

Over the past couple weeks my comcast internet has been extremely laggy off and on, not particular at night (most at random.) Extremely high ping in World of Warcraft and very noticeble when surfing the internet. It's not consistently laggy, but more often than not.

I've tried a Defrag, Cleanup!, Ad-aware 2007, and Spybot.

Any help would be appreciated, <3 Comcast!!!

[Swin123]

« SpeedGuide.net TCP Analyzer Results »
Tested on: 01.04.2008 18:29
IP address: 69.143.xxx.xx

TCP options string: 020405b40103030101010402
MSS: 1460
MTU: 1500
TCP Window: 130640 (NOT multiple of MSS)
RWIN Scaling: 1
Unscaled RWIN : 65320
Reccomended RWINs: 64240, 128480, 256960, 513920
BDP limit (200ms): 5226kbps (653KBytes/s)
BDP limit (500ms): 2090kbps (261KBytes/s)
MTU Discovery: ON
TTL: 48
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

[trogers]

Turn off power to your router and modem for 10 mins.

Try the following with TCP Optimizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU 1500
TTL - 64
TCP Receive Window - 256960
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - checked
Timestamps - uncheck

Advanced Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 20
LocalPriority - 1
Host Priority - 1
DNSPriority - 1
NetbtPriority - 1
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 80
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768
Then select "Apply Changes" and reboot to take effect

[Swin123]

Didn't seem to help. Still experiencing high latency.

[trogers]

Originally Posted by Swin123

Didn't seem to help. Still experiencing high latency.

Did you turn off power to your signal devices for 10 mins?

[Swin123]

Yes I did.

[trogers]

Do a tracert to www.yahoo.com and post.

[Swin123]

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\Owner>tracert yahoo.com

Tracing route to yahoo.com [66.94.234.13]
over a maximum of 30 hops:

1 1 ms 3 ms 3 ms 192.168.1.1
2 * * * Request timed out.
3 13 ms 11 ms * ge-1-22-ur01.hyattsville.md.bad.comcast.net [68.
87.136.113]
4 11 ms 11 ms 11 ms te-9-3-ur02.lanham.md.bad.comcast.net [68.87.129
.46]
5 12 ms 11 ms * te-9-1-ur01.lanham.md.bad.comcast.net [68.87.129
.61]
6 14 ms 16 ms 19 ms te-9-1-ur01.bowie.md.bad.comcast.net [68.87.128.
177]
7 12 ms 11 ms * te-8-2-ar01.capitolhghts.md.bad.comcast.net [68.
87.128.182]
8 9 ms 12 ms 12 ms po-90-ar02.capitolhghts.md.bad.comcast.net [68.8
6.252.214]
9 * 14 ms 13 ms COMCAST-IP.edge1.Washington1.Level3.net [63.210.
62.58]
10 13 ms 13 ms 16 ms xe-9-0-0.edge1.Washington1.Level3.net [63.210.62
.57]
11 14 ms 14 ms 28 ms ae-31-89.car1.Washington1.Level3.net [4.68.17.13
1]
12 16 ms 13 ms 14 ms 4.79.228.2
13 87 ms 88 ms 89 ms so-0-0-0.pat1.pao.yahoo.com [216.115.101.128]
14 91 ms 94 ms * ge-4-0-0-p440.msr1.scd.yahoo.com [216.115.106.20
1]
15 88 ms 91 ms 87 ms ten-1-3-bas1.scd.yahoo.com [66.218.82.217]
16 88 ms 90 ms 84 ms w2.rc.vip.scd.yahoo.com [66.94.234.13]

Trace complete.

[trogers]

Seems signal problem starts at hop 3 - along the connection from your modem to your ISP's switch. Was there bad weather recently that may have affected the connection line outside the house?

[Swin123]

Well, not really bad weather (although it can get pretty cold/windy) We had a problem like this in the past and they went to the electrical box and found that the wire went straight down at a 90 degree angle. They fixed it and it's been fine for about a year now.

[Sava700]

what modem are you using?

Have you called them on it and asked about it?

[Swin123]

The comcast guy is coming out tomorrow to check it out. He said the modem (Scientific Atlanta - DPC2100 Series) could be outdated, but it's not that old. They said they did notice some interference.

[Sava700]

Originally Posted by Swin123

The comcast guy is coming out tomorrow to check it out. He said the modem (Scientific Atlanta - DPC2100 Series) could be outdated, but it's not that old. They said they did notice some interference.

Its supported but I would recommend the SB5120, here is a site with all the modems listed that supports for Comcast.

http://www.high-speed-internet-access.us/equipment.html

As you can see top of the page they reference the sb5120, thats what I use.

[Swin123]

So you think the modem/line is the problem?

[Swin123]

Do Routers make a huge difference when it comes to MMORPG's? If so, could you recommend a couple good ones?

[YARDofSTUF]

Originally Posted by Swin123

Do Routers make a huge difference when it comes to MMORPG's? If so, could you recommend a couple good ones?

A router is nice to have, offers NAT, you then dont need a software firewall. If you only want one for that reason any cheap linksys will do.

If you want to have wireless and plan to have more than 1 PC in the future a DLink GamerLounge would be best.

[Swin123]

I have a LinkSYS Wireless-G, but we are currently wired. (We tried wireless, but the computer upstairs was getting crazy interference because of the beams in the ceiling.)

[Sava700]

Originally Posted by Swin123

So you think the modem/line is the problem?

WOuldnt hurt going with a more modern modem..those 5120's are only about 40$

and a direct line from the box to your modem is a good idea too.


still, the problem could be from line noise to the pole or packetloss.

[YARDofSTUF]

Originally Posted by Swin123

I have a LinkSYS Wireless-G, but we are currently wired. (We tried wireless, but the computer upstairs was getting crazy interference because of the beams in the ceiling.)

Wired is better for gaming as well.

[Swin123]

The comcast guy is coming tomorrow, I'll see if they carry the modem you are suggesting. If not, I'll buy it myself.

Thanks for all your help, greatly appreciated. Happy New Year =)