bah humbug

i was using my wireless card and decided to connect through my cat5 cable,at first it did not work but then i reset the netgear router modem and it as worked flawlessly but when i tryed to connect to the same router wireless it says ip conflict and unidentified network on my laptop i may have clicked a option here or there trying to make things more safe.i am getting 100% signal its sent some packets but not recieving them.any help would be great.
oh and my old laptop and psp connects no problem.

 

did you set up your laptop network adapters with a static ip address (either wireless or wired)?

 

when i first got this lappy a year ago i just connected, it asked for passwords i filled it in and its worked ever since. i got a bit paranoid so messed with a few setting trying to make things more sercure and when i put in the cable it did not work although it had before many times i had to reset the router for 10 seconds then it worked but when i tryed to go wireless it said that there is already a computer with this ip address basicly it thinks that the wired and wireless are 2 diffrent computers.thx for any help.