CUCM Invalid License Due to Change License MAC Parameters

[mario_aiad2014]

After we have modified NTP and set timezone on cisco call manager. We have faced the below message:
Licensing Warnings:
System is operating on Invalid licenses. Call Manager service will go down after the grace period of 30 days expires. Please obtain valid license files and upload.

Appreciate your help.

[Nithin Eluvathingal]

Open a Licensing TAC ticket. They will assist you on rehosting the license. Use below link to Open the case with TAC.

https://mycase.cloudapps.cisco.com/case