[Q] Losing 3G and Google Sync Frequently

I've had my Nexus S for about 7 months now. It was working fine until a month or two ago, when I'm at home and I would lose 3G signal. The bars will turn gray completely, but full bars still.

I can fix this by either turning off Airplane Mode On/Off or rebooting the phone.

I've flashed the newest radio (KJ1) for the I9023A, but no help.

I'm sure that it's not the tower that's at fault because I've been using my Nexus One for a few days and I don't lose signal at all. Also, this happens not only at home but other locations as well (work, restaurants, etc.).

Please check my signature for the ROM and Kernel that I'm using.

Would flashing a new ROM/kernel help? Or is the radio faulty?

Thanks

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