Dell Inspiron 15R (5110) wifi problem. Intel Centrino n1030

[KashifNawaz]

I bought new Dell Inspiron 15R (n5110) 3 weeks ago. It has Intel Centrino N-1030 wifi adapter. For 1 week, its wifi worked fine on its Windows 7. But afterwards, it starting dropping the signal after every hour. Now since last 8 days, i am unable to connect my laptop with wifi. But my two room mates are enjoying full speed of internet. 5 other people are using the same connection and faced no problem. I googled the problem , find some ways but none of them worked. Even i am disappointed by reading some posts on some forums that there is no solution for this problem. I have to replace the wifi adapter from N 1030 to N-6230. But I dont know, form where I can replace this. Really there is no solution for this problem?

Currently I am living in Dubai, UAE. Can anyone help me please.

I already downloaded and installed the latest drivers for this wifi from intel sites, and dell site.
I have checked all the properties options of wifi adapter.
I have deleted all the connections and made new one.
I un-installed the driver for wi-fi and re-install it.
Other than these, I have tried many other registry solutions, firmware update, bla bla..

[nanzz]

Do you know how to use Tp link router with dell inspiron n5520