The invention relates to routing messages over a network of interconnected devices of a networked control system, particularly to routing messages for individually controlling devices of a networked control system such as light sources of a lighting system. A basic idea of the invention is to determine a routing path for a message from a sender device to a destination device through the grid of interconnected devices of a networked control system, and to change the routing path, when a faulty device is contained in the routing path, in order to route the message around the faulty device, instead of determining an entirely new routing path. Thus, an efficient routing of a message over a network of interconnected device may be provided. An embodiment of the invention provides a method for routing messages over a network of interconnected devices (10, 12, 14, 16, 18) of a networked control system (20), wherein the devices are arranged in an approximately rectangular grid and each device (10) is adapted for routing messages, which were received from directly neighbored devices (12, 14, 16, 18) in the grid, to directly neighbored devices (12, 14, 16, 18) in the grid, wherein the routing comprises the acts of determining a routing path for a message from a sender device to a destination device through the grid (S10), routing the message from the sender device to the destination device along the determined routing path through the grid (S12), and changing the routing path according to a predetermined routing rule for routing the message around a faulty device contained in the determined routing path (S14).