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At a loss with my wireless


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#1 fiend1182

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Posted 12 February 2010 - 12:16 AM

About a week ago my wireless download speed dropped dramatically. I was getting between 15-20Mbps all of the time. It has now dropped to under 1Mbps. While I don't claim to be an expert I am in school studying networking so I have a good general knowledge about this type of thing.

I have 3 computers, one desktop (my main computer) and 2 laptops. The issue happens with all of the computers but is more prevalent with the desktop. There had been no changes made to any of the systems prior to the issue. On the desktop I have Windows 7 and Vista, the laptops have XP and Vista and the issue is the same no matter what OS is being used.

There is no issue with a wired connection only wireless. There are also no problems with signal strength and the network speed usually stays at 54Mbps but never goes under 36Mbps.

Here is the list of things I've tried.

- updated all firmware/drivers for the router and adapters.
- changed ethernet cables
- tried every channel on the router
- changed the security on the router
- moved the router
- reset the router
- replaced the router and desktop adapter with new ones
- contacted the ISP (Comcast) who said things were fine on their end

I may have even forgotten a few things I've tried. The only thing that seems to help at all is unplugging the router for about 30 seconds and plugging it back in. After I do that my speed usually goes back up for a little while but at the most it only stays up for a few hours and then tanks again and stays low until I unplug the router again.

I'm at a total loss at this point. I've posted on other forums and asked people I know and no one seems to be able to figure out what's going on. Any help is greatly appreciated.

Edited by fiend1182, 12 February 2010 - 12:18 AM.


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#2 fiend1182

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Posted 12 February 2010 - 02:50 PM

Ok, here's something I'll throw out there. Just now the connection on my desktop slowed down. I checked the connection on the 2 laptops and they were fine. I ran the netstat command on all computers. On the 2 laptops there were very few entries but here is what I got on my desktop. I won't pretend to know what all of it means but it seems like there is way too much going on here.

Microsoft Windows [Version 6.1.7600]
Copyright © 2009 Microsoft Corporation. All rights reserved.

C:\Users\Bryon>netstat

Active Connections

Proto Local Address Foreign Address State
TCP 127.0.0.1:27015 Bryon-PC:49162 ESTABLISHED
TCP 127.0.0.1:49162 Bryon-PC:27015 ESTABLISHED
TCP 127.0.0.1:56384 Bryon-PC:56317 TIME_WAIT
TCP 192.168.1.100:56311 24.143.201.73:http TIME_WAIT
TCP 192.168.1.100:56312 api:http TIME_WAIT
TCP 192.168.1.100:56314 143.127.102.125:http TIME_WAIT
TCP 192.168.1.100:56315 24.143.201.73:http TIME_WAIT
TCP 192.168.1.100:56318 gx-in-f147:http TIME_WAIT
TCP 192.168.1.100:56319 gx-in-f105:http TIME_WAIT
TCP 192.168.1.100:56320 api:http TIME_WAIT
TCP 192.168.1.100:56324 gx-in-f138:http TIME_WAIT
TCP 192.168.1.100:56328 surfcanyon:http TIME_WAIT
TCP 192.168.1.100:56329 api:http TIME_WAIT
TCP 192.168.1.100:56343 219.232.241.91:domain TIME_WAIT
TCP 192.168.1.100:56344 192.168.1.1:icslap TIME_WAIT
TCP 192.168.1.100:56345 192.168.1.1:60333 TIME_WAIT
TCP 192.168.1.100:56346 192.168.1.1:icslap TIME_WAIT
TCP 192.168.1.100:56347 192.168.1.1:icslap TIME_WAIT
TCP 192.168.1.100:56348 192.168.1.1:60333 TIME_WAIT
TCP 192.168.1.100:56349 192.168.1.1:icslap TIME_WAIT
TCP 192.168.1.100:56357 api:http TIME_WAIT
TCP 192.168.1.100:56360 node-64-4-241-49:https TIME_WAIT
TCP 192.168.1.100:56361 node-64-4-241-49:https TIME_WAIT
TCP 192.168.1.100:56364 OCSP:http TIME_WAIT
TCP 192.168.1.100:56365 serv:http TIME_WAIT
TCP 192.168.1.100:56366 OCSP:http TIME_WAIT
TCP 192.168.1.100:56372 219.232.241.91:domain TIME_WAIT
TCP 192.168.1.100:56374 219.232.241.91:domain TIME_WAIT
TCP 192.168.1.100:56376 219.232.241.91:domain TIME_WAIT
TCP 192.168.1.100:56382 219.232.241.91:domain SYN_SENT
TCP 192.168.1.100:56386 80.252.110.146:4661 SYN_SENT
TCP 192.168.1.100:56387 219.239.90.172:28221 SYN_SENT
TCP 192.168.1.100:56388 72.51.37.237:8899 SYN_SENT
TCP 192.168.1.100:56389 66-199-250-170:8911 SYN_SENT

C:\Users\Bryon>

#3 fiend1182

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Posted 12 February 2010 - 03:05 PM

Just re-checked and now the laptops are starting to slow down and after running netstat there are more entries showing up on them. Also the the entries on my computer are growing, the command has literally been running on my computer for more than five minutes and it's still not finished. There has to be something to it.

#4 CaveDweller2

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Posted 12 February 2010 - 04:59 PM

Have you run any scans on the PC(s)?

Hope this helps thumbup.gif

Associate in Applied Science - Network Systems Management - Trident Technical College


#5 fiend1182

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Posted 12 February 2010 - 05:14 PM

Yeah, no virus/malware of any kind. I have AV software running at all times.

#6 CaveDweller2

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Posted 12 February 2010 - 05:27 PM

When you run the netstat are you running a torrent program? or anything else that would be trying to make soo many connections? Because your netstat shouldn't be that long.

Try rebooting the machine and before you do anything else run netstat and see if it takes that long to complete.

But if its trying to make that many connections, it'll slow your network right on down.

What anti virus do you run?

Hope this helps thumbup.gif

Associate in Applied Science - Network Systems Management - Trident Technical College


#7 fiend1182

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Posted 12 February 2010 - 06:03 PM

I restarted and ran netstat again and there are still way to many connections. I don't have any torrent or P2P software at all.

I use Norton Internet Security.

It seems like it is running through all the sockets starting from around 46000 an continuing pretty much in order. Each time I run netstat I notice the sockets going in sequence.




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