Wireless lan Controller 4402 / ping dynamic interface failed

hi,
i've a problem with a Wireless Lan Controller 4402.
When i configure the dynamic interface on the my network , with wired lan
i don't reach (i use the ping command) the ip address of the WLC.
In my case (wired):
On my pc i've a ip 10.1.78.1 255.255.0.0 and dgw 10.1.1.1 (vlan721)
The lan WLC have a ip of management 10.12.2.4 /24 (vlan799) [dgw 10.12.2.1]
dynamic vlan 792 ip add 10.12.78.100 / 22 (vlan792) [dgw 10.12.68.1]
i ping these interfaces (10.12.2.4 and 10.12.78.100) and the ping is ok.
When i create a dynamic interface vlan 721 starting the problem:
dynamic vlan 791 ip address 10.1.1.240 / 16 (vlan721)
After this ......the ping on 10.12.2.4 and 10.12.78.100 don't respond very well
and i lose the 80-90% of the ping packages.
through the wi-fi instead I do not have problems.
the problem exist only via wired (cable).
Can you help me?
Thanks
FCostalunga

Hello,
Pinging the dynamic interface is officially not supported. The reason why is because the controller places a very low priority on ICMP traffic. Typically, you will not have an issue with doing so on your wireless network because this interface is basically a gateway for the client. However, from the wired network - the only interface designed to respond to pings 100% of the time is the management interface. Hope this helps!
-Mark

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