We have a problem with a user authenticating with OES Client when he's at home using a VPN.

The user have the following errors :

LOGIN-LGNWNT32-890: The specified server is unknown.
LOGIN-LGNWNT32-430: The following drive mapping operation could not be completed.

When the user ( still with VPN ) do a second try with the OES authentication, then it will work.

Any idea ?