VPN + AOL + Shared folders dies after logging off AOL once

[bobcat]

I've got a remote user running Windows 98 trying to connect to a shared folder on our network via our IPSec VPN. We're using SafeNet PK as our VPN client and AOL dialup is his Internet connection. He can connect to the network, and get on the shared folder on a NT server just fine. The problem is, if he logs off AOL, and later tries to log back onto AOL and the shared folder, it gives him a 'Network provider not found' error. Rebooting solves the problem, that is, until he logs off AOL again.

Is this something fixable while still using AOL? If not, will I have similar problems with another type of dialup access?

Thanks,
Todd