Router configuration help needed

Hi,
Hope someon can help here. I have a windows server 2003 connected to the internet via Verizon Westell Veralink 327W. Itried to put a D-link 130 Broadband VPN router int he network to eventually tunnel to sites together.
I can access the web interface of both devices if I plug them in separately. But when I connect the internet to the internet port of d-link and the server to a lan port no connection.

Hope I have put enouh info here. Gone to get some coffee, back in 30min.

PS 1st time posting a question here but have been coming here for years.

Thanks in advance