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how do I know if someone has connected to my wireless network?

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3 replies to this topic

#1 scorpia13


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Posted 31 December 2010 - 03:11 AM

I'm using wireless connection between my computer and modem. I was wondering if someone can connect to my network out of my neighbours. (it's password protected, which may make it a bit harder, but not impossible) Is there a way to know that someone has connected? I'm using Windows vista, so if its possible, could someone walk me through this? That would be great help.
Thanks a lot.
The core of mans' spirit comes from new experiences.

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#2 somdcomputerguy


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Posted 31 December 2010 - 10:27 AM

My router has a 'DHCP Client' list, where is listed every device connected to it. You're modem might have a similar thing, but it's hard to say.. You're modem maybe can be accessed thru your browser, try, or looking thru any paperwork or manual that came with the modem, for the correct address. You can also google the modem model #, more info may be made available this way..
-bruce /* somdcomputerguy */
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#3 Chris Cosgrove

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Posted 18 February 2011 - 01:18 PM

Paranoia is a wonderful thing !

Somdcomputerguy is quite right insofar as he goes - that will tell you if someone is connected at the time you are looking, but that isn't really your problem, is it ? What you want to know is if anyone can connect through your router.

Borrow a laptop, or get a friend to come round with theirs, and see if it can connect through your router without inserting passwords or security keys. If this laptop can connect, you have a problem - an unsecured network. If they can't, you may be good to go.

You say your router has a password set. The problem is that there at least three different passwords possible on a router, and it is not clear which one you mean. The first is the one to access the router control panel, and this usually comes, by default, as either 'admin' or 'password' depending on the maker. This is easily changed on accessing the router control panel, and mine is set to somethng like 'crocoDile'. The next one is the password issued by your ISP which, along with your telephone number, is used to access their services from the router. This is normally a very strong password, ie a random string of letters and numbers, and you can't usually change it. Just keep a note of it it in a safe place.

The third one is the router security system.

At a mininum, you should have WEP enabled, and for a strong preference, WPA-PSK. This you can set up by accessing the router control panel and selecting the security of your choice. You then need to generate a security phrase which then becomes your access code. KEEP THIS IN A SAFE PLACE, UNLESS IT IS VERY MEMORABLE ! Once you have set this, any computer trying to access your network needs this code phrase to do so. The only downside to this is that every computer on your network has to be set to the same security level and the same security code, but this is a very small price to pay.

Prevention is better than cure !

Chris Cosgrove ( Certified Paranoid ) :thumbup2:

I am going to be away until about the 22nd October. Time on-line will be reduced and my internet access may be limited. PMs may not be replied to as quickly as normal !

#4 ThunderZ


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Posted 18 February 2011 - 06:35 PM

WEP has been and is easily cracked with tools readily available online.

If you are running almost any form of WPA with a non-dictionary findable word you are reasonably safe.

The longer the WPA key the better. Up to a maximum of 63 mixed characters. Numbers\upper and lower case letters\special symbols. Also change the default password on your router. After doing this you should be fine.

Just saw how old the original post was. :whistle:

Edited by ThunderZ, 18 February 2011 - 06:36 PM.

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