I found a solution when there is no network just after booting: sudo pkill dnsmasq
The network manager then automatically relaunch dnsmasq as you can see by typing: sudo /etc/init.d/network-manager status
And it's OK ! So it seems to be a DNS related problem.
I found a solution when there is no network just after booting:
sudo pkill dnsmasq
The network manager then automatically relaunch dnsmasq as you can see by typing: d/network- manager status
sudo /etc/init.
And it's OK !
So it seems to be a DNS related problem.