My internet has been lagging a lot lately and I recently found out that someone was using my internet from across the street but I dont know who. I read somewhere in Google on how to put a password on your internet but I cant find it anymore. Can anybody pls help me out?
It's usually in something called "Wireless Network Security" or something along those lines in your router setup. There, you can configure it to password protect your connection so only you can get in.
Easiest would be to simply look in your manual or on Dlink's website. I beleive they had a pretty comprehensive guide to setting WEP's and other such wireless security options.