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Is someone else on my wireless network?


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ashegam's Avatar
ashegam ashegam is offline
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18-Jul-2011, 11:04 PM #1
Is someone else on my wireless network?
The past few days my wireless internet has come to a crawl. I usually have a 3.5MB speed at speedtest.net but it's been around 1 to 1.5mb the past week. I'm wondering if someone else is using my wireless or not. How do I go by finding this out?

I have a linksys E1000 and I have the log activated but not sure what to look for. The log has 4 reports.. incoming, outgoing, security and DHCP log.

I also know how to run cmd and configall /all but not sure what to look for to compare with the log.

Any suggestions?
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18-Jul-2011, 11:34 PM #2
Do you have any sort of wireless security set up or is it wide open for anyone to connect to?
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18-Jul-2011, 11:37 PM #3
I thought I did. I have changed the default user name and have a password. Other then that I don't recall changing any of my routers settings.
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18-Jul-2011, 11:44 PM #4
Not sure if the E1000 comes unsecured... check the wireless security settings
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18-Jul-2011, 11:51 PM #5
it's on wpa2 personal and has the pass phrase enabled.
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19-Jul-2011, 12:40 AM #6
who is your internet provider and where are you located (country)
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19-Jul-2011, 12:53 AM #7
RCN in IL
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19-Jul-2011, 01:05 AM #8
Try speed tests at Seattle, WA, Los Angeles, CA, and Atlanta, GA servers.

How much are you meant to be getting?
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19-Jul-2011, 10:10 AM #9
Under Status, Local Network, check the DHCP Client list. Will show the devices that have been issued an IP by the router. Lists the IP address issued, MAC number of the device, Client Name, how connected.

Open the cmd prompt and run a tracert and post the results.

Start, Run, CMD, OK to open a command prompt:
(For Vista or 7 type CMD in the Search box after Start)

Type the following command:

tracert yahoo.com

Right click in the command window and choose Select All, then hit Enter.
Paste the results in a message here.

If necessary use a text file and removable media to copy the results to a computer with internet access.

Looking for large variations in times or losses for each step.
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ashegam ashegam is offline
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19-Jul-2011, 10:58 PM #10
My computer was the only one listed under the DHCP client list. Also this slow down happens at night around 8-11pm etc...
I should be getting 5mb DL speeds but that's through landline. When I hooked up my wireless it went down to 3.5MB max but now lately at night it drops to 1mb-2mb max. Is it just due to normal higher traffic since I'm on cable and everyone shares it? ( share meaning not dsl and dedicated line etc.. not that there is someone free loading off my wireless).


Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

>tracert yahoo.com

Tracing route to yahoo.com [209.191.122.70]
over a maximum of 30 hops:

1 * 1 ms 2 ms XXXXXX [192.168.1.1]
2 17 ms 9 ms 7 ms bdl1.hnc-ubr1.chi-hnc.il.cable.rcn.net [10.20.16.1]
3 31 ms 28 ms 30 ms mart-h1.chi-mart.il.cable.rcn.net [207.229.191.130]
4 32 ms 29 ms 49 ms tge2-4.border2.eqnx.il.rcn.net [207.172.15.212]

5 32 ms 32 ms 32 ms pat2.che.yahoo.net [206.223.119.17]
6 67 ms 55 ms 66 ms as-3.pat2.da3.yahoo.com [216.115.96.100]
7 52 ms 55 ms 59 ms ae-1-d131.msr2.mud.yahoo.com [216.115.104.87]
8 44 ms 63 ms 55 ms te-7-2.fab1-a-gdc.mud.yahoo.com [209.191.78.147]

9 66 ms 67 ms * te-9-2.bas-c1.mud.yahoo.com [209.191.78.169]
10 61 ms 67 ms * ir1.fp.vip.mud.yahoo.com [209.191.122.70]
11 66 ms 36 ms 39 ms ir1.fp.vip.mud.yahoo.com [209.191.122.70]

Trace complete.

Last edited by ashegam; 19-Jul-2011 at 11:15 PM..
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20-Jul-2011, 02:06 AM #11
I would suspect the cable internet company, especially at that timeframe. If they haven't gone to Docsis 3 system yet, which will provide a ton of bandwidth, then they may have simply oversold in your area and there is too many people on at 1 time... or they are throttling you.

Traceroute is fine. If your wireless is secure, and it seems to be, then no-one should be connecting to your wireless connection.

One thing you can do is when it happens again, go directly from your computer to the modem and see if you get the same results. If you do then most likely it's the internet provider.
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