Vista slow to reestablish network after wake from sleep

Hi all,

I've noticed that my new Vista box is slow to reestablish networking
after it wakes from sleep.

For example, if I put it to sleep, wake it, and then visit a site, IE
just spins. However, if I wait a bit and try again, everything works.
On my XP and Win2000 boxes, as soon as it wakes, I can immediately do
stuff.

Do others have a similar problem? Is there anything I can do to fix
that?

Thanks! -Scott