BIG-IP Peer self local IP cannot be ping

Thanks Leslie_Hubertus . 
Hi SolarJeans , 

What I understood till now , 
- if you're in primary node you can ping ( primary node self ip and floating ip ) that's make sense because it's owned by primary one. 

- you can't ping the peer self ip ( 172.166.94.163 ).

- I think the linked article will not help you in this case 

 I want to know The below results when tring to ping both of devices ? 
as I see in this one "  12:14:59.719138 ARP, Request who-has 172.166.94.174 tell 172.166.94.163, length 48 out slot1/tmm2 lis= " you are directed to ask the gateway. 

- Could you please to check the assigned Vlan ( 2 local self ips and floating one ) make sure they are a in the same correct Vlan.

- I see you connects both of f5 devices by a L3 switch , so can you try to ping the Big-ips gateway ( Switch interface ip ) which connects with both of Big-ip devices in this subnet ( 172.166.94.x ). 

- If I miss some points please explain to me your network connectivity ( Vlans and a simple design ) to see which devices interacts with Bigip. 

- Try to ping ( the Local self IP and Floating one )of the Peer device from Peer device itself.

I will wait your response