Model :

Hardware Version : Not Clear

Firmware Version :

ISP :

Hello,
I have these devices:
- M5350: 3G router;
- TL-WA500G: access point.

I want to connect the TL-WA500G in client mode to the M5350 to share its 3g connection with a wired host. The connection between access point and router works fine if I disable the security on both the devices. Without changing anything in the network parameters (gateway, DNS, etc) the problem is when I want to work with the security turned on. The M5350 supports only "WPA-PSK/WPA2-PSK" , so I've selected the same on TL-WA500G, writing the password that I use to connect to the M5350's wifi. In the 3G "System Log" page I see the tentative of connection from the TL-WA500G, but the response is negative, like if the password sent is wrong. I tried almost every combinations without solve this problem...
Could someone help me please?