it has been a while since I have been on the networking train so I just want to confirm a hunch before I make myself look stupid...here's the sitch
Client computer (on metal working machine) has 2 nics. one it uses to communicate with the innerds of the machine and pass commands back and forth and the other is to connect to the coporate network for file sharing and what-not. each works independently but not together. it seems that when both are plugged in the machine commands get routed to the corporate network thus rending the machine useless. they swear that other MFG machines work fine this way. My conclusion was IP addressing.
Here is the thing,
nic one (machine) is 192.168.0.1 subnet 255.255.255.0
nic two (corp) is 192.168.1.x subnet 255.255.255.0
What I think may be happening is that the MSP that set up nic 2 for the corp network gave it a /24 subnet when in fact the corporate network is /16 and has some default route for 192.168.x.x addresses? am I wrong or is this pretty much the only thing that makes sense?