A flexible, integrally formed tie strip for forming a loop when passed through itself comprises a plurality of identical cells formed in a strip, the cells forming generally loop-shaped enclosed apertures bounded by wall portions of the cells, each aperture allowing the passage of further cells through it. The network access system further receives client device configuration data from the client access device over the communications link during an authentication and authorization exchange and processes the client device configuration data to determine if the client access device will be granted access to the network. A language isolation component can organize one or more controller engine instances based upon a computer language utilized within the industrial environment.