[ubuntu] drastically slow internet

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http://ubuntuforums.org – hello there, i installed ubuntu alongside windows 7 on my Dell XPS 1647. after installation i noticed the wifi in 11.10 is extremely slow, ive been all over the internet and cant figure it out, please help, thanks in advance! here are some info/codes. lspci Quote: 00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 18) 00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express x16 Root Port (rev 18) 00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06) 00:1b.0 Audio device: Intel Co (Hardware)