Networking Toolbox est une plateforme Web gratuite qui réunit plus de 100 outils réseau accessibles directement depuis un navigateur, sans installation requise. Cette boîte à outils complète s'adresse aussi bien aux sys admin qu'aux développeurs et étudiants en informatique. - ShevArezo`Blog

sudo systemctl restart NetworkManager.service

Here are 6 ways you can restart the network in Ubuntu and other Linux distros. Also learn to refresh wireless network connection in Ubuntu Linux.

This is the easiest way to restart your network using the command line. It’s equivalent to the graphical way of doing it (restarts the Network-Manager service).
sudo systemctl restart NetworkManager.service

nmcli
There are two steps to this method: turning the network off and then turning it back on.

sudo nmcli networking off

The network will shut down and the icon will disappear. To turn it back on:

sudo nmcli networking on

This quick and easy troubleshooting tip is hugely effective at fixing Wi-Fi, cellular, and other network problems on your iPhone.

Want to view the network usage for all currently active processes on your Linux PC? It's easy with these open-source tools.

Synology Knowledge Center provides you with answers to frequently asked questions, troubleshooting steps, software tutorials, and all the technical documentation you may need.

This article explains how to install and find out real-time per-process network bandwidth usage with nethogs utility under Unix/Linux operating systems.