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First, let’s decode the terminology. In the Autodesk Network License Manager (NLM) ecosystem, status codes tell you the state of a specific feature (software package) on a license server.
In plain English: Status 2100 Hot = The license manager is overloaded, frozen, or caught in a deadlock.
You will typically see this in the debug log file (debug.log) as:
[TIMESTAMP] (adskflex) DENIED: "Hot" status 2100 for feature X
Set up monitoring scripts using lmstat -a to identify hot licenses daily. Automatically recycle them during off-hours.
Published by: Tech Support & CAD Administration Team
Reading time: 8 minutes
If you are a CAD manager, BIM coordinator, or design professional using Autodesk software (AutoCAD, Revit, Maya, Inventor, or 3ds Max), seeing the phrase "Autodesk license status 2100 hot" can be a moment of dread. This error typically appears as a pop-up notification, in the License Manager logs, or as a status report from network license servers.
The word "hot" here does not refer to temperature. Instead, it signals a failed transaction between your client software and the Autodesk license server. Understanding what this error means, why it triggers, and how to resolve it is critical to keeping your design teams productive.
Using an old version of LMTOOLS (FlexNet License Manager) with a new Autodesk product release often triggers status 2100. For example, running AutoCAD 2025 on an LMTOOLS 2018 version will fail.
Status 2100 is almost exclusively associated with the Network License Manager (NLM). Unlike a named user license (where you just log in with an email), a network license relies on a server on your local network handing out "tokens" to users.
The 2100 error is the server’s way of saying, "I have no tokens to give you, or I don't know who you are."
This usually happens for three "hot" reasons:
Autodesk allows users to "borrow" licenses for offline use. If a borrowed license expired improperly (e.g., the user changed their system clock or the hard drive failed), the NLM can enter a state of confusion. It tries to revoke the borrowed license, fails, and then flags the status as "Hot" for all subsequent users.
First, let’s decode the terminology. In the Autodesk Network License Manager (NLM) ecosystem, status codes tell you the state of a specific feature (software package) on a license server.
In plain English: Status 2100 Hot = The license manager is overloaded, frozen, or caught in a deadlock.
You will typically see this in the debug log file (debug.log) as:
[TIMESTAMP] (adskflex) DENIED: "Hot" status 2100 for feature X
Set up monitoring scripts using lmstat -a to identify hot licenses daily. Automatically recycle them during off-hours. autodesk license status 2100 hot
Published by: Tech Support & CAD Administration Team
Reading time: 8 minutes
If you are a CAD manager, BIM coordinator, or design professional using Autodesk software (AutoCAD, Revit, Maya, Inventor, or 3ds Max), seeing the phrase "Autodesk license status 2100 hot" can be a moment of dread. This error typically appears as a pop-up notification, in the License Manager logs, or as a status report from network license servers.
The word "hot" here does not refer to temperature. Instead, it signals a failed transaction between your client software and the Autodesk license server. Understanding what this error means, why it triggers, and how to resolve it is critical to keeping your design teams productive. First, let’s decode the terminology
Using an old version of LMTOOLS (FlexNet License Manager) with a new Autodesk product release often triggers status 2100. For example, running AutoCAD 2025 on an LMTOOLS 2018 version will fail.
Status 2100 is almost exclusively associated with the Network License Manager (NLM). Unlike a named user license (where you just log in with an email), a network license relies on a server on your local network handing out "tokens" to users.
The 2100 error is the server’s way of saying, "I have no tokens to give you, or I don't know who you are." In plain English: Status 2100 Hot = The
This usually happens for three "hot" reasons:
Autodesk allows users to "borrow" licenses for offline use. If a borrowed license expired improperly (e.g., the user changed their system clock or the hard drive failed), the NLM can enter a state of confusion. It tries to revoke the borrowed license, fails, and then flags the status as "Hot" for all subsequent users.
