Sounds like that is a trim router, which is not suited for table work. It is an excellent little router for trimming up edges, doing roundovers and even sign making, each of which activity is hand held. You need a couple of horsepower router with a 12 mm (half inch) collet for table use. Very likely your existing plate will work with it. Keep the small router, get a good strong router, what ever the Bosch 1617 is called there. You'll be happy with it.
The more I do, the less I accomplish.