Re: Fedora 20: dropping wifi

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On 08/12/2015 10:14 AM, jd1008 wrote:


On 08/12/2015 09:27 AM, Max Pyziur wrote:
On Tue, 11 Aug 2015, jd1008 wrote:



On 08/11/2015 04:24 AM, Henrik Frisk wrote:
Hi,

I've been having this problem for some time now, on and off. I loose WiFi and there are no available networks to connect to although I know there should be several and other devices are connected. The only remedy is a restart. Logout will not help. After restart I can access networks for a while after which it is dropped again.

My Network controller is Broadcom Corporation BCM4331 802.11a/b/g/n (rev 02)

Any suggestions?

Best,
/Henrik

All I can suggest is that the firmware of that wifi has power saving
function that turns it off after what it decides to be a period of inactivity.

Another thing to check is

System -> Preferences -> Look and Feel -> Screen Saver

From that gui, click on Power Management
Be sure to check all 4 tabs of the Power Management Gui.

R U running on battery most of the time?

I would like to echo the problem that Henrik is having.

The Wifi on my Dell Laptop (D630) has been dropping ever since I installed Fedora on it (initially F18; now F21). No matter which Fedora version, the Wifi connection eventually drops, can be restored a few times w/ systemctl restart NetworkManager

and then eventually drops.

I too would like to find a way of restoring and maintaining the Wifi connection w/o rebooting.

..... Rest snipped .....

The D630, and possibly the OP's laptop are old.
On windows systems, there is (was) a configure menu that turned off power management of the wifi,
so that the wifi would always remain on.
On Linux, you can disable power management by running
iwconfig <interface-name> power off

Yeah ... I know .. it sounds as if you want to power it off.
That is not the meaning of it. It turns off power management,
so it will always be ON.

FWIW,
I do not even have to use iwconfig to prevent my wifi :
(02:00.0 Network controller: Broadcom Corporation BCM43224 802.11a/b/g/n (rev 01) from shutting down. So, I conjecture that it's firmware has power management off by default.

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