[ubuntu] Wireless connection dropping

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http://ubuntuforums.org – Hello, I'm running Ubuntu 12.04 64-bit, on my System76 Lemur. At home my wireless works perfectly, but while at work it drops my connection intermittently. In order to regain connectivity I must disable then re-enable Networking or Wireless (it will not reconnect on its own). This is extremely frustrating, and my IT support was of no help. Can anyone help? Here is some output that may be useful: iwconfig: Quote: lo no wireless extensions. wlan0 IEEE 802.11abgn ESSID:"UCSD-PROTECTED" Mode:Managed Frequency:5.18 GHz Access Poi (Hardware)