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CAD tip CAD tip # 4823:

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License Alert: A valid license could not be obtained by the network license manager.Try again.

This error message (when trying to obtain a network license from your AdLM server) means that the license server is blocking connections. Make sure the FlexLM (FlexNet) server is running and configured properly. Setup your firewall (on the server) so that FlexLM (adskflex.exe and lmgrd.exe) is allowed to communicate on ports 2080 and 27000-27010 (incoming).

This problem often occurs on new installs, on installing a new firewall or on updating to WinXP SP2 (internal firewall).

ACAD2010ACAD2006ACAD2004MapADTRevitInventorCO
100% *CAD
11.1.2006   44723×  
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this tip shared by ARKANCE experts applies to: AutoCAD 2010 · AutoCAD 2006 · AutoCAD 2004 · AutoCAD Map 3D · AutoCAD Architecture · Revit · Inventor · Raster Design ·

See also:
Tip 10466:What is the difference between GROUP and HOST_GROUP in a FlexNet option file?
Tip 10081:How to reserve a floating license to a specific PC?
Tip 9410:How to limit the number of consumed licenses for a user group?
Tip 8977:How to reserve an Autodesk floating license for a user or group?
Tip 5731:Online statistics reports about active network licenses of CAD software.
Selected tip: AutoCAD reports "unknown command" on IMAGE.


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