Arch Linux

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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Slithery

Administrator

From: Norfolk, UK

Registered: 2013-12-01

Posts: 5,776

Re: NetworkManager loses wireless connection randomly

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.

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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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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`.

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

seth

Member

Registered: 2012-09-03

Posts: 61,216

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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