ping www.google.com and
ping 188.8.131.52 and access the web browser manually, resulting in "server couldn't connect".
I have 3 connections via eth0, wlan0 and wlan1(through USB) , eth0 doesn't have internet access and when I activate wlan0 or wlan1 with eth0 I dont have internet access, but when I activate only wlan0 or wlan1 I do, when I activate eth0 alone, I dont have internet access, so maybe something in eth0 configurations?
I tried disabling Wi-Fi cause i've read somewhere that wlan0/1 could be the default access and avoiding internet connection from eth0,but it didn't work also.
My /etc/network/interfaces file:
iface lo inet loopback
My etc/NetworkManager/NetworkManager.conf file: