日常许可问题发帖求问题存在感。

没错还是许可问题，这个问题吧里至少千分之一的人碰到过至今还没有解决。
第一次启动没有进入输入序列号的窗口而是直接跳出许可管理器未启动这类的问题，随后CAD直接关闭。
与CAD版本无关，与WIN版本无关。
Autodesk社区已经问了好久了还是没有解决的迹象。
如果知道这个问题的，就算是只言片语也描述一下吧。
删文件没用！删文件没用！删文件没用！别老是整天扯FlexNet了好吗，看到删这东西的真想直接删楼。

Verify that FlexNet Licensing Service 64 is not disabled in Windows Services console.
Using Windows Explorer, browse to the following folder:
C:\ProgramData\Autodesk\CLM\LGS\<Product_Key>_2017.0.0.F
If the folder does not exist, create it.
Note: The product key must match the product that is giving the error. For example, if you get the error with AutoCAD 2017 you need to use product key 001I1. For AutoCAD Architecture 2017 you would use product key 185I1. This is true even if you installed from a suite.
Delete the LGS.data file, if it exists.
Using Notepad (or preferred text editor) create a new text file called LGS.data.
Add the following text to the text file:
_STANDALONE (or _NETWORK if the product uses a network license). The text must be all capital letters.
Save the file to the following folder:
C:\ProgramData\Autodesk\CLM\LGS\<Product_Key>_2017.0.0.F
Launch AutoCAD.
这是官方的回答之一，但是显然没有卵用。

If the above solution does not work please try the following solution.
Disable your Antivirus Software.
Create a new activation file via the following steps:
Remove all files under C:\Users\<username>\AppData\Roaming\Autodesk\ADUT. You may need to show hidden files and folders if you cannot see the AppData folder.
Under C:\ProgramData\Autodesk\ADUT, delete the ProdInd_UserInd.cur file.
Go to C:\ProgramData\FLEXnet and delete any files that start with adskflex.
Run your Autodesk product and try activating.
* This problem can occur if malware is installed and redirecting http traffic. Perform a system scan with your Antivirus\malware removal tool. Check browser add-tools.
官网回答的后半段，依然没用。

“在启动的初始画面选择输入序列号，立即出现错误提示，最大的可能就是因为LGS.data没有自动生成，或生成时出现错误。”
和客服交流的最后一句话，尝试了一下，确实是相关的问题。
然而在生成LGS之前呢？明显问题在这边然而在此没有任何的头绪。

✎﹏﹏﹏﹏﹏﹏﹏﹏﹏﹏
一花一世界，一叶一追寻。一曲一场叹，一生为一人！
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第一天顶，求讨论。

第二天顶，求讨论。