发布时间：2022-06-06 16:32:18
sudo gedit /etc/NetworkManager/NetworkManager false》true
sudo gedit /etc/ppp/peers/dsl… #mtu 1492 》 1412
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the solution of ubuntu network:
set the NetworkManager->false 》 true then sudo service networkmanager restart
success searching the www.oschina.net!
# $sudo killall pppd
$sudo poff -a
$sudo pon dsl-provider