Public bug reported: I use tp-link wn723n usb dongle. When I start the computer I am not connected automatically to the router but the hardware is recognized. It looks like the problem is that I get a wrong MAC :
kernel: [ 32.481663] MAC Address = 00:e0:4c:81:88:02 which looks like a combination of the first part of the serial number of the dongle: 00e04c, the chip: 8188 and and an index number: 02. I have to remove the dongle and insert it in order for the wireless connection to work. Then I get the correct MAC: kernel: [ 449.752527] MAC Address = c4:e9:84:0c:cb:af It looks like the problem starts here: kernel: [ 56.946579] r8188eu 1-2:1.0 wlan1: renamed from wlan0 even though I have: # USB device 0x:0x (r8188eu) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="c4:e9:84:0c:cb:af", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0" # USB device 0x:0x (r8188eu) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:e0:4c:81:88:02", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan1" If I reboot the computer at this point that I have a connection to the router, magically I am automatically connected again to the router. Here are 2 same issues with wrong MACs and the same chip: https://lists.openwrt.org/pipermail/openwrt- devel/2014-November/029401.html https://github.com/lwfinger/rtl8188eu/issues/75 ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-41-generic 3.19.0-41.46 ProcVersionSignature: Ubuntu 3.19.0-41.46-generic 3.19.8-ckt10 Uname: Linux 3.19.0-41-generic i686 ApportVersion: 2.17.2-0ubuntu1.8 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: moshe 977 F.... lxpanel CurrentDesktop: LXDE Date: Tue Dec 22 12:25:13 2015 HibernationDevice: RESUME=UUID=5e5eaba6-2f6f-4a5f-8a75-9b6cd6841e46 InstallationDate: Installed on 2015-01-06 (349 days ago) InstallationMedia: Lubuntu 14.10 "Utopic Unicorn" - Release i386 (20141022.1) ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-41-generic root=UUID=a94f05c3-f057-45de-bc12-2c8c7c502cd4 ro RelatedPackageVersions: linux-restricted-modules-3.19.0-41-generic N/A linux-backports-modules-3.19.0-41-generic N/A linux-firmware 1.143 RfKill: SourcePackage: linux StagingDrivers: r8188eu UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/14/2004 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F1 dmi.board.name: 7VM400M-RZ dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF1:bd01/14/2004:svn:pn:pvr:rvnGigabyteTechnologyCo.,Ltd.:rn7VM400M-RZ:rvrx.x:cvn:ct3:cvr: ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: apport-bug i386 staging vivid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1528534 Title: No wireless connection on computer start To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1528534/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs