Hello again, Alberto,

Are you're sure, that you use mdbPageScroll directive correctly? Maybe you make some mistakes in your's router configuration?? I tried to create situation simillary to your's but for me, it's everything is okay.
I created some navigation like:

<h1>Angular Router</h1>
<nav>
<ul>
<a [routerLink]="['/primary']"mdbPageScrollhref="#scroll"><li>Primary</li></a>
<a [routerLink]="['/secondary']"mdbPageScrollhref="#scroll2"><li>Secondary</li></a>
<a [routerLink]="['/home']"mdbPageScrollhref="#scroll3"><li>HomeComponent</li></a>
<a [routerLink]="['/']"><li>Default page</li></a>
</ul>
</nav>
<router-outlet></router-outlet>

Angular Router

My router configuration in app.module.ts looks like below:
const appRoutes: Routes = [
{path: 'primary', component: PrimaryComponent},
{path: 'secondary', component: SecondaryComponent},
{path: 'home', component: HomeComponent},
{path: '', redirectTo: 'localhost:4200', pathMatch: 'full'}
]
And it's everything is okay. When i click links, they're scrolling smooth to their's id.
Please check one more time if you have properly implemented routes, and if you have mdbPageScroll directive. Without this directive, you won't be able to use smoothscroll.
Best Regards,
Damian