Slow wireless internet. 12.04

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http://askubuntu.com – I upgraded to Ubuntu 12.04, and something is making my browsing experience slow. Here is more information: 1) I am using a shared wireless internet access, through a Netgear router. The speed test on a Windows gives 3 Mbps, when shared. I am also able to download torrents, on Ubuntu at good speeds. So, I think it's a problem only with browsing. I am using Chromium. 2) ping to the router gives an average time of 2ms. But, a ping to youtube gives an average time of 1000 ms. 3) I have installed the additional Broadcom STA Wireless Driver 4) Here is what lspci gives: and, new users are not (HowTos)