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#1 2018-10-22 12:01:41

bheadmaster
Member
Registered: 2017-10-27
Posts: 43

NetworkManager loses wireless connection randomly

I have a strange problem.

Randomly, mostly when I leave my laptop idle or use the whole bandwidth, NetworkManager loses wireless connection. The connection doesn't break, I just can't reach the internet or the gateway. It isn't the signal strength problem, since it also happens with strong connections.
Running `nmcli monitor` doesn't show any change in connection, but `ping 8.8.8.8` and `ping 192.168.0.1` give `Host unreachable` messages. Only `nmcli networking connectivity check` then returns `limited`.

Network controller: Broadcom Limited BCM43228 802.11a/b/g/n
Kernel module: b43
I have b43-firmware installed.
I don't have any other network services besides `NetworkManager.service` and `wpa_supplicant` active. NetworkManager is enabled, wpa_supplicant is disabled, but running.

I can't seem to find out the cause of this issue. Any help or advice would be appreciated.

Last edited by bheadmaster (2018-10-22 12:26:17)


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........../
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#2 2018-10-22 12:11:48

Slithery
Administrator
From: Norfolk, UK
Registered: 2013-12-01
Posts: 5,776

Re: NetworkManager loses wireless connection randomly

bheadmaster wrote:

I don't have any other network services besides `NetworkManager.service` and `wpa_supplicant` running.

Having both of these enabled is likely causing your issue. If you want to use NetworkManager then you should disable all other networking services.


No, it didn't "fix" anything. It just shifted the brokeness one space to the right. - jasonwryan
Closing -- for deletion; Banning -- for muppetry. - jasonwryan

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#3 2018-10-22 12:15:51

bheadmaster
Member
Registered: 2017-10-27
Posts: 43

Re: NetworkManager loses wireless connection randomly

I have them all disabled. But NetworkManager for some reason starts wpa_supplicant on its own.

I have done the following:

systemctl stop wpa_supplicant
systemctl stop NetworkManager
systemctl start NetworkManager

Afterwards, running `systemctl is-active wpa_supplicant` gives `active`.


.............|
............/  GNU
........../
__---'''             o  LINUX

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#4 2018-10-22 12:53:30

seth
Member
Registered: 2012-09-03
Posts: 50,011

Re: NetworkManager loses wireless connection randomly

Check "ip a" and "ip r" when this happens and also inspect your journal - NM logs quite a lot, so it might record the incident.

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