Tracert is a log, that logs the number of hops from your computer to a website. It logs the time it takes to reach another computer and every other computer (server, gateway) on it's way.
Whatever your problem is that your having with your ADSL this log will show where the problem is.
I just did tracert from cmd and it took 10 hops to reach the PCA site.
I'm not sure what your doing wrong from the DOS Prompt so i can't offer any help sorry.