64703: Acronis Cyber Cloud: Activity fails with an error "invalid_grant", "couldn't get upstream token, failed to get upstream token provider" or "couldn't get upstream token, the agent is not registered with an upstream server"

use Google Translate


After Agent update, backup or another operation (e.g. replication, recovery) fails with one of the following errors:

{"domain":"Access","code":"InvalidGrant","debug":{"msg":"couldn't get upstream token, failed to get upstream token provider"},"error":"invalid_grant","error_description":"couldn't get upstream token, failed to get upstream token provider"}


"Request to the cloud platform failed because the agent is not registered"


Additionally, check installation logs in C:\ProgramData\Acronis\InstallationLogs (or in InstallationLogs folder in System Report).

In Installation logs you can find messages similar to: 

Error 0x2470001: HTTP transfer error
| line: 0xcbd0886296318957
| file: e:\164\enterprise\common\http\curl_transport.cpp:418
| function: Http::Curl::CurlDetails::RequestScope::MakeError
| requestType: POST
| uri: localhost/api/mms/registration
| host: localhost
| port: 0xa8e2
| curlResult: 0x7
| $module: register_agent_vsa64_21670
| error 0x2260007: Failed to connect to localhost port 43234: Connection refused
| line: 0xcbd0886296318956
| file: e:\164\enterprise\common\http\curl_transport.cpp:417
| function: Http::Curl::CurlDetails::RequestScope::MakeError
| $module: register_agent_vsa64_21670


Problem happens if mms service experiences long start time (eg. 5 minutes) after upgrade to new agent. As s result attempt of agent registration fails and it remains unregistered and cannot obtain the necessary service role.


Register the agent manually as described in Registering Backup Client Manually.