Try this [url=http://lt.dell.com/lt/lt.aspx?CID=249387&LID=4743013&DGC=SM&DGSeg=CBG&RED=301&DURL=http://www.dell.com/support/troubleshooting/us/en/19/KCS/KcsArticles/ArticleView?

I am using Dell Inspiron 15R. My wireless adapter is Dell Wireless 1702 802.11b/g/n. I am having issues regarding network speed. My drivers are up-to-date.

Intel® Core™2 Duo Processor E6600 (4M Cache, 2.40 GHz, 1066 MHz FSB) Intel® Core™2 Duo Processor E6700 (4M Cache, 2.66 GHz, 1066 MHz FSB)