Support XE loses data connection, but signal still appears

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http://androidforums.com – Hi all, I have an annoying issue with my HTC Sensation XE. Every five days or so it appears that my data connection is still active (i.e. I have the "H" or "3G" icons active), but when I browse or use FB I get network errors, unable to connect. The wi-fi connection works OK when this happens. In order to fix this, I have to turn off the phone and remove the SIM card. Then order is finally restored. My friend, who is on the same carrier but using a Samsung Galaxy, doesn't have this issue... Any advice? Cheers. (General)