I had little to no Vodafone coverage at home which was an issue when receiving work calls. My IT manager has set me up with a Vodafone SureSignal and I have a quick question for anybody who may be able to assist. I have it set up and working no issues however it only works with the wifi on the cellphone switched off. As soon as I switch wifi off the light on the SureSignal to say a device is connected lights up solid and I get full bars of Vodafone coverage all over the house. Great. However as soon as I turn wifi on on the handset (Android ) the light on the SureSignal goes out and the phone goes back to the nearest Vodafone tower which gives me very little if any coverage.

I can just leave WIFI off if I have to but I was wondering why it would do this.

Thanks in advance.