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After fixing what appears to be a universal bug concerning wireless on an ASUS U56E notebook running Ubuntu 12.04, my wired connection has stopped working. The fix I found was:

How do I get Wireless working on an Asus notebook U56E

When the wireless works, the wired does not. When I remove the command from the file that makes the fix permanent and restart, the wireless no longer works and the wired works again.

Still new to Linux, so I may be overlooking something, but does anyone have any thoughts on this problem?

Wireless and wired hardware info:

02:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N + WiMAX 6150 [8086:0885] (rev 67)
04:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR8151 v2.0 Gigabit Ethernet [1969:1083] (rev c0)

The conf file is named: /etc/modprobe.d/iwlagn.conf and the content is

options iwlwifi bt_coex_active=0
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Peter
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  • Please edit your question to add details about your wireless and wired cards from this terminal command: lspci -nn | grep -e 0200 -e 0280. The pipe symbol is on the right side of my US keyboard on the same key with . – chili555 Feb 21 '13 at 13:54
  • Which sequence do you have in the conf file? bt_coex_active or 11n_disable or both? Have you tried first one and then the other and then both? Is or are the parameters in iwlwifi.conf? – chili555 Feb 22 '13 at 01:50
  • The conf file is named: [gksu gedit /etc/modprobe.d/iwlagn.conf] and the content is [options iwlwifi bt_coex_active=0]. Does this answer your question? There is only this one command in the sequence. – Peter Feb 22 '13 at 03:21
  • Please delete the file: sudo rm /etc/modprobe.d/iwlagn.conf and write a new one: gksu gedit /etc/modprobe.d/iwlwifi.conf. Add a single line: options iwlwifi 11n_disable=1 Reboot and let us have your report. – chili555 Feb 22 '13 at 03:37
  • Both wireless and wired function normally after reboot. Thank you chili555! – Peter Feb 22 '13 at 07:23
  • So I can get a few reputation points, I am going to convert my comments to an answer I hope you'll accept. Glad it's working. – chili555 Feb 22 '13 at 16:49
  • Interesting, after one reboot both wireless and wired were working. Now, after another reboot, only wireless is working. – Peter Feb 22 '13 at 18:24
  • Your ethernet uses the driver atl1c. Does it run if you simply load the driver? sudo modprobe atl1c If so, add it to /etc/modules. – chili555 Feb 22 '13 at 21:26
  • @chili555 Still does not work if I load driver. – Peter Feb 28 '13 at 03:02
  • Please load the driver: sudo modprobe atl1c. Now look for error or warning messages here: dmesg | grep atl1 – chili555 Feb 28 '13 at 13:36
  • No error or warning messages. – Peter Mar 01 '13 at 13:25
  • Are there any interesting clues in the message logs? sudo modprobe atl1c && dmesg | grep -e atl1c -e eth0 – chili555 Mar 01 '13 at 18:49
  • This comes up once-- [atl1c 0000:04:00.0: atl1c: eth0 NIC Link is Down],and this a dozen times or so -- [ADDRCONF(NETDEV_UP): eth0: link is not ready] – Peter Mar 04 '13 at 19:37
  • Are there any listings here for eth0? If you are using Network Manager, there should be none: cat /etc/network/interfaces – chili555 Mar 04 '13 at 20:25
  • No listings for eth0. Just: auto lo iface lo inet loopback – Peter Mar 07 '13 at 22:00
  • Please reboot so we have a clean slate. Turn the wireless switch to OFF. Be sure a known good ethernet cable is attached. Then run this in a terminal: dmesg > peter.txt. Find the text file peter.txt in your user directory and paste it here and give us the link. http://paste.ubuntu.com/ – chili555 Mar 09 '13 at 13:57

1 Answers1

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Please delete the file: 

sudo rm /etc/modprobe.d/iwlagn.conf

and write a new one: 

gksu gedit /etc/modprobe.d/iwlwifi.conf

Add a single line: 

options iwlwifi 11n_disable=1

Reboot and let us have your report.

chili555
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