Agent registration

Acronis Cyber Protect Cloud, Acronis Cyber Protect 15: MMS service cannot be started, error "error 0x30002: CannotBind"

You want to register a machine with Acronis Agent in the management server. Registration fails. You check Acronis Managed Machine service and notice that it is stopped.

When you try to start the service, you get this error (logged in Windows event logs):
Error 0xb9000b: Failed to initialize network module.
| trace level: error
| line: 0xb957662f70a242f
| file: e:\327\enterprise\service\impl\server.cpp:678
| function: Core::ServerImpl::StartNetworkServer
| $module: mms_vsa64_12420
|
| error 0x30002: CannotBind
| line: 0xe6f03fbb500414fa
| file: e:\327\enterprise\common\async_ipc\async\io_base_libevent.cpp:371
| function: AsyncIpc::Libevent::IoBase::Activate
| $module: asyncipc_vsa64_12420

Acronis Cyber Protect, Acronis Cyber Backup: Registration on Management Server fails if network card is disconnected

Symptoms

You try to install Acronis Cyber Backup 12.5 or Acronis Cyber Protect 15 on a machine where a NIC is disconnected or missing. Both Management Server and Agent are selected for installation.

At 99% of installation progress you get an error:

Registration failed.

Backup agent: "Failed to connect to the management server"

Manual registration fails with an error: ZmqGW return empty AMS addresses list

Cause

Issue in the product.

Acronis Cyber Protect 15, Acronis Cyber Backup 12.5: how to manually add a machine to management server
Acronis Cyber Protect, Acronis Cyber Backup: Agent registration fails with "503 service unavailable" if http_proxy environment variable exists

Symptoms

  1. You want to install an agent in an environment with a proxy.
  2. You have configured proxy according to the user guide (Acronis Cyber Protect 15) 
  3. Agent registration fails with the following error:

    503 service unavailable

Acronis Cyber Protect: Agent registration fails with "failed to validate possible tenant change: unintended tenant change"

Symptoms

Agent registration fails with the following error:

Failed to validate possible tenant change: unintended tenant change

This error usually occurs when re-registering the Agent, e.g. to a different tenant. 

Cause

Issue in the product: resource remains tied to the previous tenant and cannot be registered to a new tenant.

Solution

There are 2 possible workarounds: