There is a known bug in the Security Manager software of certain Doremi/Dolby server models. This bug affects DCP-2000, ShowVault, IMS1000 and IMS2000 servers and some of their variants. Dolby refers to this bug as the Y2K24 bug as what it does is ...
Dolby Labs has issued a bulletin regarding the long term shutdown of their cinema equipment. The Dolby bulletin is here: Dolby Digital Cinema Power Maintenance Recommendations V1.1