I provide support to end users at the IBM Toronto Lab Software. We use Aironet 340 and 350 cards. I just noticed that the users cannot connect from one laptop to another using wireless cards. Pinging returns host unrechable. The machines are on the same subnet and connected to the same AP. If I connect one of the machines to the Ethernet cable. Then, they are able to talk.
Could be that you have PSPF enabled on your access points:
"Block Inter-Client Communication with PSPF Feature
Publicly Secure Packet Forwarding (PSPF) prevents client devices associated to a bridge or access point from inadvertently sharing files with other client devices on the wireless network. PSPF provides Internet access to client devices without providing other capabilities of a LAN. With PSPF enabled, client devices cannot communicate with other client devices on the wireless network. This feature is useful for public wireless networks like those installed in airports or on college campuses."
IntroductionHow to use the Wireless LAN Controller Configuration Analyzer (WLCCA)
Javier Contreras is a Senior Tech Lead for the Wireless Business Unit in Cisco, with over 2 decades of experi...
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(#)For this reason being that : - application that doesn't use multicast, sends one copy of each packet ( data unit of traffic at layer 3 ) to each client (" who seeks the traffic ).- application that does use multicast, sends ...
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...