[themishmosh]

i am convinced these dongles throw off the voltage regulation when it is plugged in with the engine running. i use the voltage display on my radar detector and notice voltage fluctuated wildly and ultimately triggers the dsc/4x4 error--probably because of low battery charge. i only use my wifi adapter with battery power or external voltage regulated power supply....no problems. You won't know it's happening unless you monitor battery voltage either through a device or the BMW dashboard (which is a pain to unlock).