Public bug reported: TP-LINK TL-WN821N v4 USB wi-fi adapter appears to be correctly detected, including loading the correct driver, but no wireless access points are ever listed and the green light on the device stays on (it's intended to flash).
Ubuntu 12.04 64-bit Ubuntu 3.2.0-38.61-generic 3.2.37 Output of sudo lsusb: us 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 006: ID 050d:7051 Belkin Components F5D7051 802.11g Adapter v1000 [Broadcom 4320 USB] Bus 002 Device 002: ID 0f30:0112 Jess Technology Co., Ltd Bus 003 Device 002: ID 1bcf:0007 Sunplus Innovation Technology Inc. Optical Mouse Bus 001 Device 007: ID 0bda:8178 Realtek Semiconductor Corp. Output of modinfo rtl8192cu: filename: /lib/modules/3.2.0-38-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192cu/rtl8192cu.ko firmware: rtlwifi/rtl8192cufw.bin description: Realtek 8192C/8188C 802.11n USB wireless license: GPL author: Larry Finger <larry.fin...@lwfinger.net> author: Ziv Huang <ziv_hu...@realtek.com> author: Georgia <geor...@realtek.com> srcversion: 2846722243FEC10EAE6075D alias: usb:v7392p7822d*dc*dsc*dp*ic*isc*ip* alias: usb:v20F4p624Dd*dc*dsc*dp*ic*isc*ip* alias: usb:v2019pAB2Bd*dc*dsc*dp*ic*isc*ip* alias: usb:v2001p330Ad*dc*dsc*dp*ic*isc*ip* alias: usb:v2001p3309d*dc*dsc*dp*ic*isc*ip* alias: usb:v2001p3307d*dc*dsc*dp*ic*isc*ip* alias: usb:v0E66p0019d*dc*dsc*dp*ic*isc*ip* alias: usb:v0DF6p0061d*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp8186d*dc*dsc*dp*ic*isc*ip* alias: usb:v0B05p17ABd*dc*dsc*dp*ic*isc*ip* alias: usb:v0846p9021d*dc*dsc*dp*ic*isc*ip* alias: usb:v07B8p8178d*dc*dsc*dp*ic*isc*ip* alias: usb:v07AAp0056d*dc*dsc*dp*ic*isc*ip* alias: usb:v0586p341Fd*dc*dsc*dp*ic*isc*ip* alias: usb:v050Dp2103d*dc*dsc*dp*ic*isc*ip* alias: usb:v050Dp2102d*dc*dsc*dp*ic*isc*ip* alias: usb:v2019p1201d*dc*dsc*dp*ic*isc*ip* alias: usb:v04F2pAFFCd*dc*dsc*dp*ic*isc*ip* alias: usb:v04F2pAFFBd*dc*dsc*dp*ic*isc*ip* alias: usb:v04F2pAFF8d*dc*dsc*dp*ic*isc*ip* alias: usb:v04F2pAFFAd*dc*dsc*dp*ic*isc*ip* alias: usb:v04F2pAFF9d*dc*dsc*dp*ic*isc*ip* alias: usb:v04F2pAFF7d*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp317Fd*dc*dsc*dp*ic*isc*ip* alias: usb:v9846p9041d*dc*dsc*dp*ic*isc*ip* alias: usb:v4855p0091d*dc*dsc*dp*ic*isc*ip* alias: usb:v4855p0090d*dc*dsc*dp*ic*isc*ip* alias: usb:v13D3p3359d*dc*dsc*dp*ic*isc*ip* alias: usb:v13D3p3358d*dc*dsc*dp*ic*isc*ip* alias: usb:v7392p7811d*dc*dsc*dp*ic*isc*ip* alias: usb:v20F4p648Bd*dc*dsc*dp*ic*isc*ip* alias: usb:v2019pED17d*dc*dsc*dp*ic*isc*ip* alias: usb:v2019pAB2Ed*dc*dsc*dp*ic*isc*ip* alias: usb:v2019pAB2Ad*dc*dsc*dp*ic*isc*ip* alias: usb:v2019p4902d*dc*dsc*dp*ic*isc*ip* alias: usb:v2001p3308d*dc*dsc*dp*ic*isc*ip* alias: usb:v13D3p3357d*dc*dsc*dp*ic*isc*ip* alias: usb:v103Cp1629d*dc*dsc*dp*ic*isc*ip* alias: usb:v4856p0091d*dc*dsc*dp*ic*isc*ip* alias: usb:v0EB0p9071d*dc*dsc*dp*ic*isc*ip* alias: usb:v0DF6p005Cd*dc*dsc*dp*ic*isc*ip* alias: usb:v0DF6p0052d*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp5088d*dc*dsc*dp*ic*isc*ip* alias: usb:v0846p9041d*dc*dsc*dp*ic*isc*ip* alias: usb:v07B8p8189d*dc*dsc*dp*ic*isc*ip* alias: usb:v07B8p8188d*dc*dsc*dp*ic*isc*ip* alias: usb:v06F8pE033d*dc*dsc*dp*ic*isc*ip* alias: usb:v050Dp11F2d*dc*dsc*dp*ic*isc*ip* alias: usb:v050Dp1102d*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp817Cd*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp8178d*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp8754d*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp818Ad*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp817Fd*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp817Ed*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp817Dd*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp817Bd*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp817Ad*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp8177d*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp8176d*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp8170d*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp018Ad*dc*dsc*dp*ic*isc*ip* alias: usb:v0BDAp8191d*dc*dsc*dp*ic*isc*ip* depends: rtlwifi,mac80211,rtl8192c-common intree: Y vermagic: 3.2.0-38-generic SMP mod_unload modversions parm: swenc:Set to 1 for software crypto (default 0) (bool) parm: debug:Set debug level (0-5) (default 0) (int) Hardware info: http://www.wikidevi.com/wiki/TP-LINK_TL-WN821N_v4 http://www.realtek.com.tw/products/productsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&ProdID=277 http://www.tp-link.com/CA/products/details/?model=TL-WN821N#spec ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Attachment added: "Output of lshw" https://bugs.launchpad.net/bugs/1152861/+attachment/3564566/+files/lshw-output -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1152861 Title: TP-LINK TL-WN821N v4 Detected but does not work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1152861/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
