Figured it out finally for those that run into a future similar issue! API Key option just doesn't work at the moment (prove me wrong please), but if you convert an additional cyber protect console user into strictly a service account, logins will finally work.
Can you please share more details on how to do this?
I'm in contact with Acronis support. They told me to use the connection verification tool (msp_port_checker_tool.exe), which is pointing to the certificate issue, but so far, support is only repeating their mantra about blocked ports
Check connection to cloud.acronis.com:443 using system certificate store...OK
Connecting to storage manager: cloud.acronis.com:443
W02470002: Error 0x2470002: Failed to read CA certificates location from the registry.
| trace level: warning
| line: 0x94b4a0446ae65406
| file: d:/328/enterprise/common/http/curl_ssl_options.cpp:33
| function: GetCACertificatesLocation
| $module: msp_port_checker_tool_lxa64_38583
|
| error 0xbe0081: The subkey cannot be found.
| line: 0xea2a9244e2a6177
| file: d:/328/core/common/registry/linux/reg_linux.cpp:1310
| function: OpenSubkey
| Key: SOFTWARE\Acronis\BackupAndRecovery\Settings\CurlOptions
| $module: msp_port_checker_tool_lxa64_38583
E02470001: Error 0x2470001: HTTP transfer error
| trace level: error
| line: 0xcbd0886296318978
| file: d:/328/enterprise/common/http/curl_transport.cpp:451
| function: MakeError
| requestType: GET
| uri: cloud.acronis.com/api/1/accounts?login=admin_dKxFxTNQnv
| host: cloud.acronis.com
| port: 0x1bb
| curlResult: 0x3c
| $module: msp_port_checker_tool_lxa64_38583
|
| error 0x226003c: The network communication with server cloud.acronis.com:443 has failed with the following error: SSL certificate problem: unable to get local issuer certificate
| line: 0xcbd0886296318977
| file: d:/328/enterprise/common/http/curl_transport.cpp:450
| function: MakeError
| $module: msp_port_checker_tool_lxa64_38583
