Since upgrading to WP8.1 developer ie11 has intermittently stopped working when on 3G. The strange thing is that its only certain websites that work although vast majority don't. When on WiFi theres no problem at all its only 3G. I've found I can use other browsers such as UC with no problem on 3G - its just IE11 that doesn't work - has anyone else had this problem or a solution please??