Just to close this issue.
I've been outside this forum a lot of time and some things changed from what I wanted, but I must say that after had tested a lot of Routers (SMC, Cisco Linksys, Thompson Service Provider and Netgear) I've found the one:
D-Link DIR-868L - Fast, Stable and fulfilling all my needs. Of course all the cloud functionalities are disable (did not use, did not want).
I recommend to give it a try if possible.