Thanks beiden. Maar alles staat aan, hoor. Want ik kan met andere computers gewoon via VPN inloggen op de host. Het is alleen een probleem met mijn desktop computer.
Deze foutmelding krijg ik (en met het oog op voorgaande, snap ik dat dus niet en nee, er is op het moment van proberen met de desktop geen verbinding via de laptop

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The client could not connect to the remote computer. Remote connections might not be enabled or the computer might be too busy to accept new connections. It is also possible that network problems are preventing your connection. Please try your connection again later. If the problem continues to occur, contact your administrator.
Cause: The remote computer might not be set up to accept remote connections.
Solution: Try connecting to the remote computer at a later time. If you receive the same message, contact the server administrator.
Cause: The remote computer might already have the maximum number of remote connections it is set up to accept.
Solution: Try connecting to the remote computer at a later time. If you receive the same message, contact the server administrator.
Cause: Network problems might be preventing the connection.
Solution: Try connecting to the remote computer at a later time. If you receive the same message, contact the server administrator.