If the Low Traffic icon in the Dashboard is not in green.
Hover the mouse over the icon to confirm that Traffic-low notice is shown. It indicates that there are very little traffic going through the BQN server. This is normal if the system is still waiting for traffic being routed through it. However, in a system in production can be an indication that some failure elsewhere in the network is preventing the traffic to reach the BQN server.
Hover the mouse over the icon. Either Traffic-uplink or Traffic-downlink should be in warning. This is because there is no traffic going through the BQN in that direction and therefore the traffic is asymmetric. You should go to Configuration->TCPO Settings and set the Overall TCP Optimization to Off while the issue is being delt with.
Fix the traffic routing so the BQN sees both directions (uplink and downlink). When done and after the icon returns to green, go to Configuration->TCPO Settings to enable the overall TCP optimization.