Check the following:
The Manager Appliance is turned on and its software is running, indicated by the lights on the front display panel.
The Manager Appliance has a valid IP address and can ping the gateway (or can be pinged from another system).
The network cables that you are using are undamaged and connected properly to the Manager Appliance ports and your existing network equipment. Make sure that the cables you use have the correct specifications.
You have used the correct LAN ports when connecting the Manager Appliance to your existing network equipment.
You used NIC 1 for configuring the system; if not, try connecting via NIC 1 and perform the configuration process again.
If the Manager Appliance is still not receiving network traffic, check the network cables and the network ports on your existing network equipment. If the cables and ports are working, there is a problem with the Manager Appliance. Contact your supplier.