The major tool of transferring information from the Internet has certainly undergone certain changes. The most current is the advancement in wireless or wire free communication or the Wi-Fi. Now one can browse on the net or check his or her –emails, etc. on either airports, libraries or even coffee shops. Something similar to your mobile phones.
Unfortunately, disagreeable activities like stealing are predictably making its entry even in the Internet. Earlier one had to pay for the internet connections. Now things have changed. Still someone could be using your Wi-Fi unauthorized.
Basically, the wireless network is made of a broadband Internet connection from any of the suppliers modem either a DSL, satellite or a cable modem. You can then attach the connected modem to a wireless router. The router will transmit the signal and create a network system. The router also can be your DHCP server. The DHCP holds a list of IP addresses and the MAC address of computers it is to serve to. Now this is LAN or Wi-Fi.
Now if your wireless network suddenly starts working slowly. Especially for a certain time period, then possibly you have someone stealing your Wi-Fi. Basically during your routers installation, you can set a wireless encryption protocol (WEP) key. This is nothing but a password-protected method for you to register into your own wireless network. If you have not set one then most probably, you're operating an open network. So because of this any one can use your wireless for free if he or she is in the range. To clear your doubts about this, just crosscheck it by first going to the My Network Settings on your PC and then check the go to View Entire Network. If you find more number of computers connected than the allowed limit than you have allowed, be assured that you have a Wi-Fi thief lurking close by. You can also check your DHCP table settings. You can view your DHCP client table. The DHCP will make a list of all the PCs connected in you network. Check the list and if the user number exceeds than the set-up ones. Then no doubt that someone is using your Wi-Fi.
A WEP key is must for any wireless network set up; however, even those are susceptible to hacking. You can manually assign IP addresses for your net work and let the DHCP server take care of the internet packet supply. This will avoid any other computers from entering your LAN.
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