IIRC, the machine was on an isolated equipment network with no external access for some time, but the network drivers would often cause some kind of conflict wi

IIRC, the machine was on an isolated equipment network with no external access for some time, but the network drivers would often cause some kind of conflict with the ISA interface card (and custom driver) so the network interface was disabled. So yeah, should be safe (and is likely no longer hardwired to the network).