Ubuntu 12.04 / Broadcom 4313 Wireless slows down network

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http://ubuntuforums.org – I am having similar problems to those described here: http://ubuntuforums.org/showthread.php?t=2135692. The wireless and wired connection on my computer are working fine, but it seems like whenever I am connected wirelessly, other devices on the network have their connection speed drop. I am a Linux novice and would like to make sure I am doing the right thing before I mess with too many things. Here are my specs: Machine: ASUS 1015E-DS03 Laptop lspci -nn | grep 'Wireless' Code: 02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter [14e4:4 (Hardware)