@Kevin_Z Thanks to all for your replies. Meanwhile I found the solution: In "Preferences" there are 2 software switches, "Wlan" and "Wlan2" that were not "On"! Interestingly, if "Wlan" is off,...

@Carl Archer T4U(EU) Ver 2.0 S/N 216B412001630, P/N 0152502158. PS: I am planning to use it with Linux-last time I tried it in vain. Got the driver from elsewhere and it was difficult to install. Is...

It is displayed in the device manager, but not blinking. I followed the suggestions in the manual. Works fine with Win7,8. Thanks for your advice.

I tried all suggestions in the manual-in vain. The adapter is displayed in the device manager, nevertheless not blinking. Win7/8: No problems! Thanks a lot for your advice!