Article - CS26634

Error - The License file you have requested contains an error, Invalid Host. The host id of this system does not match the host id specified in the license file. FLEXnet Licensing Error: -9,57

Modified: 20-Jun-2022   

Applies To

  • Windchill Quality Solutions Enterprise Edition 10.0 to 11.0
  • Pro/ENGINEER and Creo Elements/Pro Wildfire to Wildfire 5.0
  • Creo Parametric 1.0 to 9.0
  • Mathcad 14.0 to 15.0
  • Mathcad Prime 1.0 to 8.0
  • PTC Arbortext Editor 6.0 to 8.1


  • Error The license you have requested contains an error. Invalid host. The Host ID of this system does not match the Host ID specified in the license file:
    Error. FLEXnet Licensing Error: -9, 57
  • Getting the error message Flexnet licensing error: -9, 57 on windows 8
  • Unable to reach the correct MAC Address
  • Unable to open the software by getting the error message FLEXnet Licensing error: -9,57
  • Error The license you have requested contains an error. Invalid (Inconsistant) license key, Flexnet Licensing error: -8.523
  • Ptcsetup.exe display the wrong PTC HOST ID
  • Licensing error when unplugged Ethernet Network Adapter cable
  • Frequent licensing error when changed from one network connection to another (Ethernet to Wireless or Wireless to Ethernet)
  • Getting error -9: Invalid host
  • Error FLEXlm Licensing Error: -9,57 while lauching application
  • For Arbortext, [A31679] PTC Arbortext Editor was not able to obtain a license
    • License not appliable to the computer
    • The license source doesn't have the license for this product.
      Details: Requesting ArbortextEditor ... (-9) Invalid host.
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