[ubuntu] Realtek RTL8192E on Samsung R420

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http://ubuntuforums.org – Sometimes, my wireless connection stops working, but it still shows as connected in the notification area. I have to do reset the driver to fix it. It happens every 10 minutes to a few hours. When I type lspci it shows: 02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8192E Wireless LAN Controller (rev 01) ifconfig: Code: wlan0    Link encap:Ethernet  HWaddr 00:26:b6:63:26:7b            inet addr:  Bcast:  Mask:           inet6 addr: fe80::226:b6ff:fe63:26 (HowTos)