Same damn problem with my device. Called QTel a million times and guess what they suggest... please switch it off for few minutes and restart and see if its solved. Off course the support know that once I restart it will work and it will take sometime to get stuck again and I am not going to stay on hold till that happen. Poor support as usual. I am use to off it now and I don't bother to call Qtel.
Every one has the same problem. I dont know when the hell will Qtel do something about it.