WiFi Issue Join+Authenticate OK, Associate Fails

Dear all,
I am trying to connect EMX via WiFi trough its ZG2100 module to an Access Point provided by a Smart Phone (Samsung Galaxy) without success.
The connection is infrastructure mode and WPA protected.

My Tests

  • EMX is able to connect to a D-Link Access Point (Join+Authenticate+Associate are OK)
  • I can connect a PC to the Smart Phone
  • EMX fails in connecting with the Smart Phone (Join+Authenticate are ok, Associate Fails).

I have captured the logs below trough MF Deploy and it does not go much in detail.
As I do not have access to ZG2100 code I cant proceed with debugging and understand whats failing.

Do you know if there is a way to make ZG2100 provide more logs?

Any other suggestion is much more than appreciated.

Thanks

Logs With Access Point Concept_DL301

Error: No response from device
Pinging… Error: No response from device
Pinging… TinyCLR
Set MAC addConnecting to EMX_EMX…Connected
WiFi link is not available yet! Wrong AP settings?
Still waiting.
[0] bssid = 00:24:01:38:8B:0E
strength = ###…

    indicator = 148

    ssid = Concept_DL301

    channel = 1

AP selected = [0] 

Join …
succeeded
Authenticate …
succeeded
Associate …
succeeded
Connected …
WiFi link is ready!
Test DNS

Logs With Smart Phone galaxy

Pinging… TinyCLR
Set MAConnecting to EMX_EMX…Connected
WiFi link is not available yet! Wrong AP settings?
Still waiting.
WiFi link is not available yet! Wrong AP settings?
Still waiting.
[0] bssid = B4:07:F9:AF:90:EB
strength = ###…

    indicator = 142

    ssid = galaxy

    channel = 1

AP selected = [0] 

Join …
succeeded
Authenticate …
succeeded
Associate …
failed
proceed to disconnect …
Disconnect starting …
succeeded
Disconnect complete … (2/3)
Set MAC addr …
mac = 00:1A:F1:00:42:0D
Mac address Set
Set regional domain …
region = fcc
Set security …
setting PSK key …
security key set
Scan … for ssid "galaxy "
WiFi link is not available yet! Wrong AP settings?
Still waiting.
WiFi link is not available yet! Wrong AP settings?
Still waiting.
User Cancel…

Probably this AP does not support IEEE802.11b.