Dell Inspiron N5110 Wireless Connectivity Issues

So I got this laptop maybe a month ago; it was working great until maybe a week ago. Then my router started having issues, which effected all of the computers in the house. I got a new router and more bandwidth, and the internet is now fine for all computers but my own. I've researched it a lot, and has

-The Computer runs Windows 7, and has an Intel Centrino Wireless-N 1030 adapter

I have tried many things to try and resolve this, and will try to recount all the things we've tried here.

-I've done a bunch of stuff in the network and sharing center . I noticed that my computer does not seem to remember the WEP key that I typed in to the properties for my router, as I have recently (also around when the problems started happening)  configured my router's key to be a 5-digit ASCII password, but it has the old 10-digit 0-9, A-F, password (don't know the technical name for that). I have removed the network profile and manually set up a new one multiple times, but it always has that 10-digit password there.  I have messed with the wireless adapter settings, but can't think of anything really noteworthy I've done in there. I've messed with the command prompt, using ipconfig (though I have no idea what most of the stuff in there means) for maybe some insight into what my problem was; I've also tried some commands posted on other forums. After some googling, I found a good few forum pages explaining troubles with the Centrino Wireless-N 1030 Adapter; I'm not sure if that's because it's especially temperamental or if it's just a really common adapter. The laptop works fine with an ethernet cord in the back, it's just the wireless that doesn't work. I have not yet been able to test it on another router/network, but I doubt that that is the problem as no problems have been encountered with other devices in my house. I have updated the drivers for the Wireless-N 1030 adapter, though through whatever offline functionality it uses; I haven't tried with an ethernet cord in the back yet. There's probably some other stuff I've screwed around with that I should mention, but I can't think of any at the moment.

Any insight you can give me into this problem will be greatly appreciated, and I am more than ready to provide any other information.

Thank you for your time,

(And I apologize for the poor formatting)

Christian May