Thx, the link was helpful.
I've created a gateway, and then downloaded the config for that gateway.
Then i've placed the contents of the zip file in de folder on the gateway server and restarted the service.
After a half hour the icon of the gateway is still blue.
In the documentation it also says i have to place the public.key file from the KNM server on the gateway.
I don't have a public.key file on my KNM server..
Any tips?