Request for current credentials

I'm not sure how this issue arose, but suddenly I keep getting an alert that:
'Windows needs your current credentials to ensure network connectivity' and
requests to log off and log back on. I successfully establish a VPN
connection and this error occurs when I open Enterprise Manager to connect to
a remote server through the VPN. Any suggestions? Thanks.
Take a look at the following:
http://www.ms-mvps.com/credentialserrors.htm
Cheers,
'(' Jeff A. Stucker
\
Senior Consultant
www.rapidigm.com
"DLS" <DLS@.discussions.microsoft.com> wrote in message
news:A16E04AD-83EC-4336-A65A-AD38D2767F26@.microsoft.com...
> I'm not sure how this issue arose, but suddenly I keep getting an alert
> that:
> 'Windows needs your current credentials to ensure network connectivity'
> and
> requests to log off and log back on. I successfully establish a VPN
> connection and this error occurs when I open Enterprise Manager to connect
> to
> a remote server through the VPN. Any suggestions? Thanks.