Bug 1272619 - 4.2.3-200 breaks AR9462 Wireless Network Adapter
4.2.3-200 breaks AR9462 Wireless Network Adapter
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
x86_64 Linux
unspecified Severity unspecified
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
Depends On:
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Reported: 2015-10-16 19:13 EDT by Mike Romberg
Modified: 2015-10-29 11:53 EDT (History)
6 users (show)

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Doc Type: Bug Fix
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Last Closed: 2015-10-29 11:53:49 EDT
Type: Bug
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Description Mike Romberg 2015-10-16 19:13:11 EDT
Description of problem:

  After a dnf update that included both firmware updates (may not be related) and a kernel upgrade to 4.2.3-200 (from 4.1.10-200) the dual band wireless
card (listed below) fails to connect to the wireless router.

  Relevant section of lspci:

07:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01)

  Using the same hardware with windows 8 works fine.  Also booting the older kernel (4.1.10) works as well.  So, I'm assuming something changed in the kernel between 4.1.10 and 4.2.3.

Version-Release number of selected component (if applicable):

  kernel 4.1.10  (good)
  kernel 4.2.3   (wifi fails to connect)

How reproducible:

  Used the kde UI for Network manager.

Steps to Reproduce:
1.  boot to 4.2.3 and try to connect to a wireless AP
    Note that the access points are visible.  You just can't connect to them.
2.  Fails

Actual results:
  Fail to connect

Expected results:

  Authenticate and connect

Additional info:

  I am willing do dig deeper into this if needed.  At the moment I'm fairly convinced something regressed in the kernel.
Comment 1 Mike Romberg 2015-10-29 11:53:49 EDT
Turns out that this was NetworkManager not dealing well with
the 4.1 -> 4.2 kernel changes.  While the bad symptoms did track
with the above mentioned kernels it went away with a NetworkManager
update.  So, fixed (for now)...

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