Please contact our support department.
For self help, I believe this is related to technote MG66951
Mentor Graphics has incorporated Flexera’s fix for the FlexNet license server security vulnerability. Flexera recommends customers move to this release due to security issues that have been fixed in the license server software.
Download the licensing software:
Both MGLS and PCLS packages may be downloaded from the following locations:
Customers with current support contracts -http://supportnet.mentor.com/portal?do=releases&prod=C106-S128-G159-P11292
Customers with declined support contracts - http://supportnet.mentor.com/member/licensing