Dual Radio WGB and LWAPP Controller

Question

Hallo everyone,
I have a wireless network managed by a 4402 controller with this sw version : 5.2.178.0
The client wants to add a stand alone wgb (cisco 1242 with an ios 12.4(21) ). The standalone ap associate to an LWAPP AP using the 5Ghz interface and propagate the same ssid at 2.4Ghz (I've also tried using a different ssid ). Actually the WGB is the only AP using that SSID at 2.4Ghz. As for the wired clients of the WGB I have no problems but if the client associate to the 2.4 Ghz SSID, I see it associated on the controller but no traffic from or to the client is allowed.
If for any case, the 5Ghz interface is resetted and the association betweeen the WGB and the controller is reformed, the 2.4Ghz client starts receiving and receiving traffic.
Any idea how to set things up from the the first association?
The wgb ssid is not set as infrastructure-client and the controller correclty identify it as a WGB client. In the same way the controller correclty see the 2.Ghz client like a wired client of the WGB but unless the association b.t.w the WGB and the controller is reset, no traffic reach the client.
I think that may be a problem related to how the IAPP protocol notify the presence of a client to WGB but I don't know how to work things out.. any idea?
Thank you in advance!

Answer 1

The 3600 series Access Points can have either internal or external antennae.  You can tell by looking at the top of the AP.  If there are 4 antenna connections (one in each corner) then they are external antennae. 
If you cannot get to the AP to check them physically, the antenna type is also denoted by the part number.
AIR-CAP3602I-x-K9 has internal antennae
AIR-CAP3602E-x-K9 has external antennae
The 3600 does have dual radios built in, operating in the 2.4GHz and 5GHz frequency ranges.  However, for them to show up as such, you have to enable both radios on the AP.  You can do this either through the WebUI or the CLI.
The 802.11ac option is an external module that is attached to the underside of the 3600 AP.  Please find the datasheet for the module here:
http://www.cisco.com/en/US/prod/collateral/modules/ps12859/ps13128/data_sheet_c78-727794.html
The 1552c Series access points are also dual-radio systems and should also have both radios turned on through the WebUI or CLI.  Note the quote " The Cisco Aironet 1552C/1552CU Outdoor Mesh Access Points are dual-radio systems with DOCSIS 3.0/EuroDOCSIS 3.0 (8x4 HFC) compliant cable modem for power and backhaul." taken from the datasheet for these APs found here:
http://www.cisco.com/en/US/prod/collateral/wireless/ps5679/ps11451/data_sheet_c78-641373.html
Cisco ships the APs with one Radio enabled and if you want the dual-radio functionality, you have to turn that on.  Once that is done, you should see the APs show up correctly in the WLC 5508.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++