Question

1

How to reset network manager without downtime?

rated 0 times [ 1] [ 0] / answers: 1 / hits: 931 / 2 Years ago, mon, august 29, 2022, 9:54:05

I have an unstable WiFi connection, and the bandwidth frequently reaches 0 without actual disconnection (it is connected but without data transfer). Resetting the network manager by

sudo service network-manager restart

perfectly fixes the problem. However, I have two issues:

How can I reset the network manager without a downtime? With the above command, any ongoing download will be interrupted. Is it possible to keep the current connection while resetting?

How can I write a bash script to periodically check the network connection and reset it if there is no data transfer?

I use Ubuntu 20.04.

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ugeeport

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3 Years ago

answered 2 Years ago peafowkes · Accepted Answer

The information/answers provided by others are correct, you cannot reset NM and persist a connection. You have to address the root cause of your problem.

I've found that many Wifi related issues can be resolved by disabling the power management.

Here's how I do it:

Create: /etc/network/if-up.d/wifi-powerman-off

Enable: chmod +x /etc/network/if-up.d/wifi-powerman-off

Replace interface name

#!/bin/sh



IWCONFIG=/sbin/iwconfig

WLAN_IFACE=<<interface name>>



if [ ! -x $IWCONFIG ]; then

    exit 1

fi



if [ "$IFACE" = $WLAN_IFACE ]; then

    $IWCONFIG $IFACE power off

fi