after I finaly managed to switch to English language firmware I got my self a problem. While browsing Fritz web interface I clicked on WLAN menu and suddenly whole box got stuck. So I first try to power off and on but web interface was unavailable so I did recovery with english FW. After recovery web interface was available again and I could click on WLAN menu, but WiFi is just not working. I tried with few laptops and desktops and they cant see Fritz. I tried to change antena with another - from FB 7240 but no luck.
Does anyone else got this problem? All other options are working except WiFi - I also try to remove miniwifi card from BOX but than when I connect power cable all leds just blink! I will try to find another miniwifi card to try with it or reflash back to German FW but prior to that I wanted to hear yours opinion.