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Accounts and Licensing

Website accounts and license keys

Website Accounts

  • How do I resolve the error "Key ... not found, please try again"?
  • How do I change my website account email address?

Setting Up a License File with grbgetkey

  • How do I resolve an "ERROR 201" when running grbgetkey?
  • How do I force Gurobi to stop using an old or incorrect license file?
  • How do I set up a license without installing the full Gurobi package?
  • Where do I place the Gurobi license file (gurobi.lic)?
  • How do I resolve the error "grbgetkey: command not found" or "'grbgetkey' is not recognized"?
See all 9 articles

Academic and Research Licenses

  • Google Colab: Installation and Licensing
  • How do I obtain a free academic license?
  • How do I renew my free individual academic or free trial license?
  • How do I get started with an academic license?
  • How do I resolve an "Academic Domain Error"?
See all 12 articles

Floating Site (Token Server) Licenses

  • How does a client communicate with the token server?
  • How do I update my token server to a newer version?
  • How do I check the status of the token server from a client?
  • How do I check the availability of floating license tokens?
  • Can a client point to multiple token servers?
See all 8 articles

Other Licensing Topics

  • How do I check for a valid license file?
  • What system changes can invalidate a license file?
  • How does Gurobi count cores?
  • How do I configure an AWS EC2 instance so the license file remains valid?
  • How do I request a license for an older version of Gurobi?
See all 9 articles
Gurobi Optimization