Vista - Vista Offline Files - Unable to "Work Online"

I am having a problem with a network share which will not come back online.
Here's the environment

Single server environment

W2K3 SP2 as AD domain controler

Group Policy redirect of Documents folder to a server share

Vista Ultimate client

What I can so far reproduce, is that using my WIFI connection (as the
example, but can simulate with wired) the server redirect folder comes
online, the troubled share never comes online. If I boot on the wired network
both are available. Since the WIFI connections are not established until
during the login process, the troubled share never appears. With a wired
connection the server is "seen" before login, so the troubled share is there.
If the connection drops (server reboots, move from wired to wireless without
reboot or vice-versa, etc) the troubled share goes offline and never detects
the server is there, even though all other shares to the server work.

When I open explorer and look for the "Work Online" option, it isn't there.
If I am online with this share, I can select "Work Offline" and then the
"Work Online" appears and I can switch it back. Seems that unless the server
is "visible" before logging in, I can not get the share to go online. The
redirect documents share works fine, just this one troubled share is the
problem. Checked server folder settings, permissions and caching options,
nothing different than any other share that works.

Strange, but can't find anything to fix this, short of rebooting on a wired
network whenever I need to sync. Very frustrating.

Thanks,