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#1 2018-09-15 13:21:17

an4oud
Member
Registered: 2016-12-17
Posts: 10

connection periodically disappears with NetworkManager 1.12/1.14

With NetworkManager 1.12.* and NetworkManager 1.14.* WiFI (5ghz) connection periodically disappears and reappears. With NetworkManager 1.10.* wifi works stable
Problem not like as this https://wiki.archlinux.org/index.php/Ne … .28WiFi.29 because i do not see any messages in the logs and with NetworkManager 1.10.* wifi work without problem.

wifi adapter Intel Corporation Wireless 3165 (rev 79)
wifi driver iwlwifi
kernel  4.18.7 (and older)
router asus ac86u (tried also asus ac87u)

Last edited by an4oud (2018-09-15 13:26:18)

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#2 2018-09-15 19:48:16

seth
Member
Registered: 2012-09-03
Posts: 8,112

Re: connection periodically disappears with NetworkManager 1.12/1.14

Usually either the internal dhcp client or you're running multiple network managing services.
https://wiki.archlinux.org/index.php/Ne … HCP_client
Otherwise please paste a complete journal of the boot.

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#3 2018-09-16 07:52:53

an4oud
Member
Registered: 2016-12-17
Posts: 10

Re: connection periodically disappears with NetworkManager 1.12/1.14

I do not understand why the dhcp client is at fault.
My wifi connection successfully gets ip address.
I use only the network manager with the default settings.
Why with version 1.10 is all right?

Last edited by an4oud (2018-09-16 08:10:05)

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#4 2018-09-16 10:44:38

seth
Member
Registered: 2012-09-03
Posts: 8,112

Re: connection periodically disappears with NetworkManager 1.12/1.14

Short lease times, bogus lease update calls, other nonsense packages being sent out…
It's a random guess based on your assessment, that it's actually the NM update.

The way this works here is that you provide us with required data and we make informed suggestions, so instead of just disputing the cause, either give it a try and if it's not the cause or you for some weird reason do not want to try:

seth wrote:

Otherwise please paste a complete journal of the boot.

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#5 2018-09-16 14:15:32

an4oud
Member
Registered: 2016-12-17
Posts: 10

Re: connection periodically disappears with NetworkManager 1.12/1.14

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#6 2018-09-16 14:31:07

seth
Member
Registered: 2012-09-03
Posts: 8,112

Re: connection periodically disappears with NetworkManager 1.12/1.14

The log only covers the system boot and there's no indication of some network failure in that timeframe…

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#7 2018-09-16 14:40:33

an4oud
Member
Registered: 2016-12-17
Posts: 10

Re: connection periodically disappears with NetworkManager 1.12/1.14

with network failure there are no any messages in the logs

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#8 2018-09-16 14:45:16

seth
Member
Registered: 2012-09-03
Posts: 8,112

Re: connection periodically disappears with NetworkManager 1.12/1.14

How  exactly do you determine the network failure? What makes you believe it's NM related?
Provide a full log covering the incident and check "ip a" and "ip r" when you believe the network to be down.

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#9 2018-09-16 14:49:08

an4oud
Member
Registered: 2016-12-17
Posts: 10

Re: connection periodically disappears with NetworkManager 1.12/1.14

ping to gateway (192.168.1.1) and other network resources every some minutes do not work
ip address of wifi connection is saved
with NM 1.10 all is fine and wifi works stability

Last edited by an4oud (2018-09-16 14:50:45)

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#10 2018-09-16 15:05:46

seth
Member
Registered: 2012-09-03
Posts: 8,112

Re: connection periodically disappears with NetworkManager 1.12/1.14

ip address of wifi connection is saved

Do not paraphrase output, but provide the output.
If you still have a route and a carrier, the issue is way below NM and at best induced by some additional config (usuall BT gets in the way, but only on 2.4GHz bands), so compare the NM related logs w/ NM 1.10 and 1.12

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