HELP!!!
everything was ok until I went to the office and connected my laptop to the Wi-Fi.then I came home and everything was destroyed!
My Ubuntu is connected to wifi, and the ping of 8.8.8.8 is ok, for example, skype detects wifi is connected but the same Skype can not send any message. chrome and Firefox can not open any website. apt update does not work. surprisingly ubuntu's software application can install any app!!!
other devices are connected to the same router/wifi and work properly.ubuntu had worked properly before with the same wifi, but now (after connecting to the office wifi/domain) nothing works
I have tried all the solutions that I found on websites in the last 2 days. nothing solved my problem
please don't talk about /etc/resolve.conf or disabling IPv6 or similar solutions. nothing worked!
I am near to removing the whole Ubuntu and returning to Windows again!!!