Red Hat Bugzilla – Bug 1272619
4.2.3-200 breaks AR9462 Wireless Network Adapter
Last modified: 2015-10-29 11:53:49 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)
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.
Fail to connect
Authenticate and connect
I am willing do dig deeper into this if needed. At the moment I'm fairly convinced something regressed in the kernel.
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)...