iwlwifi 7260 Wifi connected but no data

[Max]

When I connect to wifi with my builtin wireless card (Intel Corporation Wireless 7260 (rev 73)) the network is reported as connected, but I am not able to receive any data. Even pinging my wifi router leads to 100% package lost. However using a usb wifi adapter ( D-Link System AirPlus G DWL-G122 Wireless Adapter(rev.C1) [Ralink RT2571W]) everything works fine.

I already experienced this problem using Ubuntu 14.04, where I also tried using different versions of the firmware. As far as i rember (iwlwifi-7260-7.ucode, iwlwifi-7260-8.ucode, iwlwifi-7260-9.ucode), all without success. With Ubuntu 14.10. the problem is still there.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-firmware 1.138
ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
Uname: Linux 3.16.0-23-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Oct 28 21:40:13 2014
Dependencies:

InstallationDate: Installed on 2014-09-16 (42 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
PackageArchitecture: all
SourcePackage: linux-firmware
UpgradeStatus: Upgraded to utopic on 2014-10-27 (0 days ago)
---
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: maxh 2339 F.... pulseaudio
 /dev/snd/controlC0: maxh 2339 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 14.10
HibernationDevice: RESUME=UUID=2851436a-a405-4acd-9299-e5f26da669e0
InstallationDate: Installed on 2014-09-16 (48 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: LENOVO 20268
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-generic.efi.signed root=UUID=3b08c369-c6fd-4659-b1a7-8db01cda23da ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4
RelatedPackageVersions:
 linux-restricted-modules-3.16.0-24-generic N/A
 linux-backports-modules-3.16.0-24-generic N/A
 linux-firmware 1.138
Tags: utopic
Uname: Linux 3.16.0-24-generic x86_64
UpgradeStatus: Upgraded to utopic on 2014-10-27 (6 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 10/15/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: 7CCN34WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Cherry 3A Touch
dmi.board.vendor: LENOVO
dmi.board.version: 31900058STD
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: IdeaPad U330 Touch
dmi.modalias: dmi:bvnLENOVO:bvr7CCN34WW:bd10/15/2013:svnLENOVO:pn20268:pvrIdeaPadU330Touch:rvnLENOVO:rnCherry3ATouch:rvr31900058STD:cvnLENOVO:ct10:cvrIdeaPadU330Touch:
dmi.product.name: 20268
dmi.product.version: IdeaPad U330 Touch
dmi.sys.vendor: LENOVO

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.18 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.18-rc2-utopic/

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1386881

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Max (hubmax)]

I tested the latest mainline kernel (v3.18-rc2-utopic) however I was not able to boot this kernel. However for (v3.18-rc1-utopic) and the 3.17.1 kernel the problem seems to be solved. So far I have a fully running wifi.

[Max (hubmax)]

Today the problem occured again running the 3.17.1 kernel. With my Intel Wireless card I am connected but i cant even ping my router, as soon as i plugin my USB wifi card everything works fine... So i removed the kernel-fixed-upstream tag.

[Max (hubmax)]

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[Max (hubmax)]

I collected the logs with apport-collect. I am not sure if that matters, but those logs are collected with the ubuntu kernel (3.16.24). If you need more information or testing, just let me know. Thanks in advance!

[Max (hubmax)]

To check whether the problem is still present in newer kernel versions, I am now testing 3.18-rc1, and this version has the same problem. What i find odd, is that the problem is still there after several reboots and trying differnet kernels, as i cant imagine of anything that changed or is different with my setup now (compared to the last days).

[Max (hubmax)]

The problem also seems to be related to the current state of the wifi router. After a reboot of my wireless router, everything works fine again at the moment.