The following scenario would occur if Trend Micro Apex One (Mac) 3.5.2217 is not installed prior on installing Trend Micro Apex One Patch 3 (8358) (e.g Trend Micro Apex One (Mac) 3.5.2141).

• Trend Micro Apex One Mac web console cannot be accessed.
• Trend Micro Apex One (Mac) Main Service does not start, and the latest Apex One (Mac) 3.5.2217 patch cannot be installed.

In the Trend Micro Apex One Mac debug log located at ...\Trend Micro\Apex One\Addon\TMSM\debug.log

2020-07-02 13:30:26 296316 [20] DEBUG TMSMMainService - [GetOsfWebApiUrl] OSF system call url: (https://SERVER.DOMAIN.com:4343/officescan/osfwebapp/api/v1/SystemCall) [0]
 
2020-07-02 13:30:26 296316 [20] DEBUG TMSMMainService - [RegisterOSF] Response content: {"system_call_id":"OSF_SYSCALL_ONREGISTER","system_call_result_data":{"result_code":10005,"result_data":"Internal operation error"}} [0]
 
2020-07-02 13:30:54 93 [4] ERROR TMSMMainService - Error occurs when starting service. [0]
System.Security.Cryptography.CryptographicException: The parameter is incorrect.