Hi all, I have xperia u phone and i was able to use hotspot tethering to connect to the internet on my laptop with good results while at home. Problem is while on roaming mode (With data roaming enabled on phone) i cannot use tethering option to connect to internet. As soon as i enable both portable hotspot and data access an error message stating "Network error" is appearing on screen. This problem occurs only on roaming mode. Can someone help me with this?? Thanks in advance ..