wl500g eth2: Operation not supported

[madmax]

Hi,
I have used my Asus only like AP (WPA-PSK) with no problem, last day
I used it like station or ethernet bridge to connect to another AP without
success (the remote AP use WPA-PSK and it works fine with other device).
I found this error in the wireless log:

Mode : Ethernet Bridge
eth2: invalid argument
Channel : 1
Status : Connecting to gw4.intranet

I tryed different firmware Asus 1.9.5.0 , Oleg 1.9.2.7-6b with no result.

Trying:

[admin@(none) root]$ wl status
eth2: Invalid argument
Not associated. Last associated with SSID: ""


any idea, where is the problem?

Thanks in advance