The ArcGIS Notebook Server is unable to save existing notebooks if WebDAV in IIS is enabled on the Web Adaptor.

Solución alternativa

1. Disable the WebDAV module in IIS.
2. On the Notebook Server Web Adaptor machine, navigate to the directory: C:\inetpub\wwwroot\[NotebookServerWebAdaptor] and edit the Web.config file. Add the following line under <modules> within <system.webServer>:
   1. <remove name="WebDAVModule" />

Pasos para reproducir