How do I know if someone is using my WIFI?

[miyu_07]

I just want to ask if how will i know if someone who have no permission uses our wifi connection since my brother might spread the password we have to our neighbor since he is kind to others without my knowledge.

[Swarup]

Here is two link which might be help you

http://www.makeuseof.com/tag/catch-snoop-logging-wireless-network/
http://www.cnet.com.au/how-to-find-out-whos-using-your-wireless-339277871.htm

[Raymond]

I have my own way. Let me see if I have the time to write an article about this.

[Swarup]

I have my own way. Let me see if I have the time to write an article about this.

Waiting for your Post

[INDRANIL]

That would be great Raymond . Until then you can try it out Wireless Network Watcher by Nirsoft .

[Student26]

waiting in eager anticipation raymond

[miyu_07]

I have my own way. Let me see if I have the time to write an article about this.

wow Thanks Raymond! i'll wait for your article.

[Raymond]

Will be posted tomorrow

[princeaniket]

one more link to it with detailed explanation... here

[kronos_fir18]

The simple way especially for beginner user are by using Softperfect Network Scanner. This little tool will scan any ip addresses and you also can specify which ip range to be scan. It also can detect the hardware MAC adress even, across router. It's a great little tool for a network savvy.