The error manifests as: "FlexNet licensing error: -15,570" or "Cannot connect to license server" .
If the service stops immediately after starting, there’s an underlying issue. ansys flexnet licensing not running
sudo systemctl status flexnet # or sudo /etc/init.d/lmadmin status The error manifests as: "FlexNet licensing error: -15,570"
When the Ansys License Management Center shows that the licensing interconnect is active but FlexNet is stopped, background processes usually lock the ports. Close the Ansys License Management Center. ansys flexnet licensing not running