When S9300 test, initialization configuration for device, and it runs normally, do MPLS related configuration, after it reboot, configuration is normal, and there is no lost. Reboot device after modify the system time, MPLS related configuration lost, and it cannot configure MPLS related function.
License disabling cannot restore by modify system time, must to apply for new license. If it is test, apply the tempotary test license from Research and Development dept. if it is commercial deploy site, it need to apply for formal license by license application process.
Because parts of configuration lost, MPLS function disabled, judge the problem is S9300 license, check it and find that the license is the temporary license, license disabled after modify the system time, MPLS related function disabled.
If it is formal commercial license, set the system time before using license.