Thanks a million... that was the info I needed. For others: My resolution was to disable wireless-fp and enable wireless-cm2 under /system packages. After a reboot my interface was back. Seems that the wireless-fp package and the 5g interface are not yet friends at least not with 6.34. 8) Thanks! I...

mar/26 19:30:53 wireless,info 38:AA:3C:93:47:A0@wlan1: disconnected, group key exchange timeout mar/26 19:30:53 wireless,info wlan1: data from unknown device 38:AA:3C:93:47:A0, sent deauth mar/26 19:30:57 wireless,info 38:AA:3C:93:47:A0@wlan1: connected Same problem here. Device: RB2011UAS-2HnD-IN ...