Network manager doesn't reconnect wifi after suspend-Ubuntu 18.04

Asked by Pablo on 2019-01-05

When I reactivate Ubuntu 18.04 after suspend, Network manager doesn't reappear and no wifi. I have to go to terminal and "run sudo systemctl restart NetworkManager" or else use WICD. Has a solution been found for this bug?

This is the output for "sudo lshw -C network; lsb_release -a; uname -a", in case it is useful:
 *-network
       descripción: Interfaz inalámbrica
       producto: Centrino Advanced-N 6235
       fabricante: Intel Corporation
       id físico: 0
       información del bus: pci@0000:01:00.0
       nombre lógico: wlp1s0
       versión: 24
       serie: c4:85:08:1b:c1:64
       anchura: 64 bits
       reloj: 33MHz
       capacidades: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuración: broadcast=yes driver=iwlwifi driverversion=4.15.0-43-generic firmware=18.168.6.1 ip=192.168.1.52 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       recursos: irq:29 memoria:f0500000-f0501fff
  *-network
       descripción: Ethernet interface
       producto: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       fabricante: Realtek Semiconductor Co., Ltd.
       id físico: 0
       información del bus: pci@0000:02:00.0
       nombre lógico: enp2s0
       versión: 06
       serie: e8:03:9a:b3:0a:ea
       tamaño: 10Mbit/s
       capacidad: 1Gbit/s
       anchura: 64 bits
       reloj: 33MHz
       capacidades: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuración: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       recursos: irq:19 ioport:2000(size=256) memoria:f0404000-f0404fff memoria:f0400000-f0403fff
LSB Version: core-9.20170808ubuntu1-noarch:printing-9.20170808ubuntu1-noarch:security-9.20170808ubuntu1-noarch
Distributor ID: Ubuntu
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Codename: bionic
Linux pabo-530U3C-530U4C 4.15.0-43-generic #46-Ubuntu SMP Thu Dec 6 14:45:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Question information

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Last query:
2019-01-08
Last reply:
2019-01-07
Pablo (ceascolombia) said : #1

Thank you for your help.

If you run:

sudo modprobe -r iwlwifi
sudo modprobe iwlwifi

Does the wifi jump into life?

Pablo (ceascolombia) said : #3

I ran the two commands above and nothing happened.

ONe of the ways in which the error happens is when I am connected to one wifi server and then attempt to connect to another, in this case, when I don't have the password for the 2nd server. The whole Network Manager goes blank.

Pablo (ceascolombia) said : #4

It actually did reconnect after suspend, but the error ocurred when switching wifi servers

Pablo (ceascolombia) said : #5

This time it did not reconnect on suspend, but again, the two commands produced no results.

Can you help with this problem?

Provide an answer of your own, or ask Pablo for more information if necessary.

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