Problem with telia router

[Pimpelkungen]

I have a tvip 605, when its connected to router i can not reach the portal, but when i put the "wan" cable directly to the box its works fine. The ting is i would like to use the router because of all other things that is connected to it.
Is there any ports or something i should Open?
I have turned off firewall

Hope you have some ideas

 

[Lagal]

Buy a new router and dont use telias router at all

 

[uriX]

Hi,
You can make it work with the switch, but recommend as Lagal says to change to another router.