[kubuntu] Wireless network not visible

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http://ubuntuforums.org – Hi, I am fairly new to linux and installed Kubuntu yesterday. Since my installation, I've been unable to see my private wireless network but I can see others. I tried going to many forums but wasn't able to find something that matched my needs. I would like some help to fix this. I ran some commands I found. Code: $ iwconfig lo        no wireless extensions. wlan0    IEEE 802.11bgn  ESSID:off/any            Mode:Managed  Access Point: Not-Associated  Tx-Power=19 dBm            (Hardware)