This error is usually an indication that the communication between the client attempting to use the MathWorks product and the server hosting the Network License Manager is hitting a timeout limit. Some possible causes for this include the following:
- A large options file being used by the Network License Manager
- The Network License Manager does not have enough system resources on the server to process the license checkout(s)
- Slow or poor network connectivity between the end user and the server
However, in some cases, it may occur if your Network License Manager is configured with an options file that uses HOST_GROUPs with wildcards. For example:
HOST_GROUP labs 192.168.*.*
INCLUDE MATLAB HOST_GROUP labs
To workaround this issue, configure the HOST_GROUP with exact IP addresses. For example:
HOST_GROUP labs 192.168.1.1 192.168.1.2
Another potential culprit can be using MAX and RESERVE in your options file. These both limit how seats can be served to users, and thus can cause additional latency in a client retrieving a seat from the license server.
Options files live only on the Network License Manager, meaning that the person(s) maintaining the Network License Manager are the ones who should be making changes. If you don't know who may be maintaining the Network License Manager, please reach out to your License Administrator.
Who is my License Administrator?
