Autodesk Network License Manager (授權管理員)安裝在Windows Server 2008、Vista、WIN 7時 若安裝的 Autodesk Network License Manager 程式不支援IPv6，會發生LMTools運作正常，但伺服器與使用者端皆無法取得授權的異常狀況，可能會出現 下列錯誤代碼 [1.5.-15] The network license manager was not able to get a valid license. If this problem continues, please contact your system administrator. Error [1.5.-15] 或是 [-15.570.0] A valid license could not be obtained by the network license manager的訊息。
