Troubleshooting : Solutions by issue type : Connectivity issues : Bringing up network interfaces
 
Bringing up network interfaces
If the network interface was disabled, all connections will fail even though the cable has connectivity physically.
 
If the network interface’s Status column is a red “down” arrow, its administrative status is currently “down” and it will not receive or emit packets, even if you otherwise configure it. To bring up the network interface, edit the Administrative status setting.
This Status column is not the detected physical link status; it is the administrative status that indicates whether you permit network interface to receive and/or transmit packets.
For example, if the cable is physically unplugged, diagnose netlink interface list port1 may indicate that the link is down, even though you have administratively enabled it by Administrative status.
In the web UI, go to System > Network > Interface. If the status is down (a down arrow on red circle), click Bring Up next to it in the Status column to bring up the link.
Alternatively you can enable an interface in CLI:
config system interface
edit port2
set status up
end
See also
NVR configuration