WIFI only connects to network, but no internet [Wireless 7265 - Lenovo T450s - 15.10]

[gnowak]

@Snowhog. Yes, I am back with NetworkManager, and I have tried to set the DNS in the network connections many times. It does not work. But the manual override in resolv.conf did. I know, it sounds strange.

I still think the problem is that resolv.conf is not being populated automatically. Because when I do a manual change, the effect is immediate. And when I connect and disconnect to different networks there is no change in that file. Or am I missing something very important here?

[Snowhog]

Who knows. Just make note of your solution, and if the problem presents again, check the file contents. Regardless, we're glad you have a solution.

[gnowak]

I am glad too. :-)

[gnowak]

I dug a bit deeper, and found that this command solves all my problems and is probably the correct fix for this issue. My resolv.conf was broken and needed to be reconfigured with:

sudo dpkg-reconfigure resolvconf

Thanks again all!