Re: Intel 6230 - Bluetooth+WiFi Simulaneously? Without Interference?
Try to replace the card driver with a dell driver or newer dell driver, this is usually the problem. You can play with the wifi and bluetooth channels and set in the wifi router bluetooth co-exsist as well as win device manager - networking - wireless card - advanced and enable the bluetooth co-exsist or similar feature.
This should compensate for interference. There is no reason why you should have interference on your dell or a newer laptop like this or you might need to play with some wifi router settings.