A few days ago I added a new router into NAV. The new one was connected to a router already present i NAV. This happend: old-router_10 GwportHandler-3-HANDLE SQLException: ERROR: insert or update on table "gwportprefix" violates foreign key constraint "$2"

This is a known problem we are also experiencing here at NTNU. We will have a fix ready for the next beta. In the mean time a fix for this is to restart gDD.