Windows Firewall indound icmp packets drop

Question

Hi, we have enabled icmpv4 traffic with a local firewall inbound rule in a gpo and we still having ping drops.  Is there another value somewhere that we could disable in our setup.  It seems like a protection coming from the windows
server 2008 and for no specific reason it blocks the traffic.
The ping comes from a load balancer linux base machine.  We have created another test rule that is opening all ports and all protocol coming from that ip address and we get the same behaviour. 
We know if we restart the server it will let the ping go through again with no problem but for a relatively short period of time.
Carl R.
Thanks

Answer 1

Hi Carl,
>>we have enabled icmpv4 traffic with a local firewall inbound rule in a gpo and we still having ping drops.
Before going further, we can cmd command gpresult/h gpreport.html with admin privileges to collect group policy result to check if the policy setting was applied successfully.
Regarding how to allow inbound Internet Control Message Protocol (ICMP) network traffic, the following article can be referred for more information.
Create an Inbound ICMP Rule on Windows 7, Windows Vista, Windows Server 2008, or Windows Server 2008 R2
http://technet.microsoft.com/en-us/library/cc972926(v=ws.10).aspx
Besides, for this is related to network, in order to get more and better help, we can also ask for suggestions in the following network forum.
Network Access Protection
https://social.technet.microsoft.com/Forums/windowsserver/en-US/home?forum=winserverNAP
Best regards,
Frank Shen