LWAPP"invalid IP header checksum"

[jorge.lopez.lopez]

Hello , i hace a problem with a wireless network based on 4 WiSM (two in two 6500) and AP1010. AP's get IP from the DHCP and associate to the controller, but after a while, they start sending a syslog message LWAPP-ERROR: "invalid IP header checksum". I have ping losses and the AP dissasociates, reloads and reassociates to the controller. Does anyone have found the same problem?

thanks

[Scott Fella]

What code are you running on the WLC's? I know that with the AP1010, you can't be running the newer code. that is why I ask.

Is this happening on all 4 WLC's and can you post a snip of the log from the cli.

[jorge.lopez.lopez]

hi.

Version: 4.2.99. It happens on every AP, with independency of the controller

thanks!