Renewal
 Renewal Instructions
Step1:
Contact your Cisco reseller to purchase a registration key (RK) to renew your ProtectLink license.
Step2:
Register your registration key (RK) at https://olr.trendmicro.com/redirect/cisco_renew.aspx by logging in with your existing ID and password and obtain an activation code (AC).
Step3:
Use your activation code (AC) to enable ProtectLink at: https://olr.trendmicro.com/registration/us/en-us/cisco_activation.aspx