https://community.arm.com/support-forums/f/keil-forum/56421/error-c9555e-failed-to-check-out-a-license/184667
Error: C9555E: Failed to check out a license. - Keil forum - Support forums - Arm Community
Dear ARM Support Team, I hope this message finds you well. I am currently experiencing an issue with my MDK-ARM Professional license. I have successfully...