[jaclaz]

I thought that - generally speaking - you can set a device to static IP (no DHCP) and set no gateway to prevent it to access the internet.

Or has this changed?

[sbaiddn]

1. Didn't think of setting no gateway.

2. I don't trust an HP printer to, on occasion, try DHCP or change a setting (or look at an open wifi network but that wouldnt be the routers fault) to get an update.