Wireless and vlan problem

Question

Hello there
This is trickier than i thought:
I have purchased recently a brand new cisco 887w and my main issue is that none of the devices i have can communicate each other via wireless on the same vlan, ssid ect. ONLY.. though they do not have problem with the internet At first I thought that something had do with my personal configuration but after making few tweaks here and there I ended up nowhere. So I decided to rollback to the default configuration that comes via cisco express to see if i missed anything. To my surprise, again devices on the network could not ping and communicate each other! I don’t want to think the worst but I hope this isn’t hardware or IOS issue. Hopefully simple command(s) will solve the problem.
I have no probs with wired connection
Here’s the main configuration that comes with cisco express
Thanx in advance

Answer 1

Alex did you try what I wrote in one of my first posts?
"Now... that is configured on the AP.
However there are other  stuff that might affect traffic between client. For example for  multicast traffic, or as a real example, I have a 1240 on my house and  for sharing files from my PC to my PS3 I need to use "no ip  igmp snooping" on the AP..."
I have the same problem after I received my PS3...
I need to to:
telnet the AP
and do
config t
no ip igmp snooping
do wr
Reload the PS3  and use wireless only and reconnect with your computer and then DISABLE any firewall on your PC..
I have a PS3 connected to a 1242 AP (abg) actually using G only SSID with WPA2
I didnt disable aironet extensions, so dont worry about that I have it working with it.
Since you are having a N radio that could make a difference however youare been connected ! and traffic is flowing well.. except for that command that basically drops the multicast packets which are needed from communication between PS3 and media server...
Try it and let me know...
If you need to understand this feature take a look at this information from the configuration guide:
Note If there is no multicast router for processing IGMP query and response from the host, it is mandatory that no ip igmp snooping be configured on the access point. When IGMP snooping is enabled, all  multicast group traffic must send IGMP query and response. If an IGMP  query or response is not detected, all multicast traffic for that group  is dropped.
http://www.cisco.com/en/US/docs/wireless/access_point/12.3_8_JA/configuration/guide/s38ovrv.html