Powershell enable ping

List Firewall rules:

Get-NetFirewallRule | select DisplayName

Enable ping:

Set-NetFirewallRule -DisplayName "File and Printer Sharing (Echo Request - ICMPv4-In)" -enabled True

If there is no rule, you can create one like this:

New-NetFirewallRule -Name Allow\_Ping -DisplayName "Allow Ping"  -Description "Packet Internet Groper ICMPv4" \-Protocol ICMPv4 -IcmpType 8 -Enabled True -Profile Any -Action Allow