The error
ERROR 10009: HostID mismatch
indicates that the license file was generated for a machine with a different host ID. If the license file previously worked on the same machine, then something in the machine configuration has changed. Possible reasons why a HostID might change are listed in What system changes can invalidate a license file?.
If it is not possible to revert back to the computer or network interface HostID associated with your license file, then you will need a new license file.
- Commercial users: Please submit a support request via our Help Center to initiate a license transfer.
-
Academic users:
- Academic Named-User licenses: Please refer to How do I transfer my free Individual Named-User Academic or free Online Course license?
- Educational Institution Site floating token licenses: Please submit a support request via our Help Center to initiate a license transfer.
Further information
- How do I transfer my free Individual Named-User Academic or free Online Course license?
- How do I obtain a free academic license for a cluster or a shared computer lab?
- What system changes can invalidate a license file?
- How do I configure an AWS EC2 instance so the license file remains valid?
- How do I resolve an "ERROR 10009: License is for 8 cores, machine has XX"?
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