I am having 3G iPad but now the thing is that I have observed some problem with the 3G network connection on the iPad. Actually it keeps on dropping connection. So I just needed to know if this can be resolved in some manner. I have observed that at the same time as using WiFi there is no problem but as I change to 3G network then the connection continuously loosing. Amny of the times, it shows me the message that shows “No Sim Card Installed”. I” have not seen this problem earlier so can you tell me the way by which this can be resolved. I will be thankful to all the replies for this.