I don't think there would be serious problem. Anyway, below is what my ISP said.
I'll not be online, just because I want to watch that stupid ball.
Dew.
We all will survive the Y2K for sure. How boring...
>Turn off computers and other non-essential electronic devices by the end
>of the day on the 31st. There are at least three reasons for this:
>
>1) While we do not expect any major power failures, there may be some
>powerline fluctuations which might damage unprotected devices.
>
>2) If your computer does have a Y2K problem, it would be better for
>diagnostic and remediation purposes that you be available to observe any
>error messages that might occur. In addition, some problems may not occur
>until a cold reboot; it would be better in most cases to identify these
>immediately rather than have them appear at some random time later when
>you may not be thinking about Y2K.
>
>3) There are rumors of substantial mischief over the internet in the
>first few hours of the New Year; it would be better if your computer were
>simply not available if any such attacks do come.
>