Cisco Aironet 1600 - DHCP Offer Problem

Question

Hi,
I have dhcp problem with our new AP:
I add an AP to our LAN.
I make a simple configuration with a WPA authenticate.
I can connect some equipment to this AP and our DHCP give an address correctly.
We use adptator to give wireless connection to old station with old operaing system (adaptator example : Netgear WNCE3001)
This adaptor connect to AP and receive an address from DHCP.
My problem is the equipment behind this adpatator send a DHCP request, our server send a DHCP offer but never arrive to this equipment .....
Same problem with another adpatator (TRENDnet and ZyXEL)
I think Cisco 1600 dont return correctly the DHCP offer, perhaps i miss some configuration.
Anyone can help me ?
Thx
In attachment AP configuration
AP system information:
 Product/Model Number:
AIR-SAP1602I-E-K9
 Top Assembly Serial Number:
[removed]
 System Software Filename:
ap1g2-k9w7-tar.152-2.JB2
 System Software Version:
15.2(2)JB2
 Bootloader Version:
BOOTLDR: C1600 Boot Loader (AP1G2-BOOT-M) LoaderVersion 15.2(2)JAX, RELEASE SOFTWARE (fc1) 

Answer 1

Now that I have googeld on your client (Netgear WNCE3001) I really understand want you are trying to accomplish. Want you want is this client acting like something called a workgroup bridge (at least, that is how it is called when you have an Cisco AP fulfilling this role).
With the Cisco deployment you configure the AP as a workgroup bridge with multiple client MAC (and IP) addresses behind it. If the infrastructure where the AP should associated with is non Cisco you can use the "universal mode" where you can just use one (wired) client connected after the AP.
Now back to your Netgear client. I have not seen this client in real life, but if I read the manual I'm getting the feeling that this client does a little more than only bridging. At least there is no option to really configure the workgroup bridge stuff and the WLAN interface is being called "Internet adapter". There is also a option for an LAN DHCP server, which is kinda confusing as well if you ask me.
However, the thing that we can try is using a static IP address on the wired client side and test if communication is possible. Could you please give the output of the "show bridge 1" and "show dot11 ass" commands in that situation? Last but not least you can test if your configuration works after configuring "config network ip-mac-binding disable" on the WLC.