caot coect to wired dsl ccoection...........

I have used a lot of linux distros previously and they ran smooth . Then I moved to windows and now again prefer linux . But I am facing a huge problem regarding my dsl coection . Everytime I switch to boot from Ubuntu 16.04 lts live or Linux Mint 18 or Steam os , I find wired coection detected but there is actually no inteet network. I have added dsl coection from the network manager and also manually but the results are same . However, it is not the case with windows 7 or 10 .They are ruing good . My dsl coection requires ony useame and password and I use no router as well .

Even Cublinux can setup my dsl coection and previous versions of Linux Mint like 17.3 also .Then why not Ubuntu .Fedora or Debian....

I am now badly in need of your help. Any good suggestion would be excellent. Thanks to all.........