MX84 dash board state is cycling "good" and "bad"

[tid_cisco_merak]

I  have captured the traffic of MX84 connected port on Cisco Switch.

MX84 is no pinging to 8.8.8.8

MX65W is pinging per 1 sec

Is this RMA?

[Sameh_Sackla]

Is your MX passing traffic normally? Please note that although MX could be offline on dashboard, it might still be able to process traffic. Offline on dashboard means that there is a cloud connectivity issue. You can refer to the information under Help > Firewall info to find out if there are any changes that you need to do on your firewall to enable cloud connectivity. 

[tid_cisco_merak]

Thanks, Sameh,

Yes, this MX84 is begind the L3Switch and Checkpoint firewall.

I have tried directly connect ONU, and worked fine, definitely firewall issue, but firewall vendor said required ports were all opend.

Packet capture is showing UDP:7351 but return traffic seems to be smaller than sending.

L3 Switch gateway proxy arp is enable, is there possibility of cause?