[Q] Mobile data not working properly :( topic

my perfectly working 3g data services arent working properly on the z3c. most often the browser web page will work for a few mins before going off and declaring that wifi and mobile data is switched off .... whatsapp hasnt done that yet... FB has a few times.

Is this a common issue with the z3c, and any solutions? has anyone else faced it too? Help will be appreciated. tia.