AMS Stalled on 'Connect AWS Replication Agent to Replication Server'

Can someone explain why I get this error and where I can look to correct it? The "How can I solve this?" takes you to general troubleshooting and none of the troubleshooting topics have this error.

The source server .log file looks good until AwsReplicationVolumeUpdaterService. Looks like this service fails 5 times, then the process stops. Here is an excerpt from the log:

exit_code: 1053, exception: None] 2022-08-09 07:16:13,008 DEBUG running command [agent_version: 1.5.20, installation_id: 0123456789, mac_addresses: xyz,xyz, _origin_client_type: installer, account_id: abc, _origin_instance_id: xyz, _origin_source_server_id: s-1234567890, command: sc, args: ['start', 'AwsReplicationVolumeUpdaterService'], full_message: ['sc', 'start', 'AwsReplicationVolumeUpdaterService']] 2022-08-09 07:16:43,263 ERROR command failed [agent_version: 1.5.20, installation_id: 0123456789, mac_addresses: xyz,xyz, _origin_client_type: installer, account_id: abc, _origin_instance_id: xyz, _origin_source_server_id: s-1234567890, command: sc, args: ['start', 'AwsReplicationVolumeUpdaterService'], full_message: ['sc', 'start', 'AwsReplicationVolumeUpdaterService'], stdout: [SC] StartService FAILED 1053:

The service did not respond to the start or control request in a timely fashion. , exit_code: 1053, exception: None]

2022-08-09 07:16:53,266 DEBUG running command [agent_version: 1.5.20, installation_id: 0123456789, mac_addresses: xyz,xyz, _origin_client_type: installer, account_id: abc, _origin_instance_id: xyz, _origin_source_server_id: s-1234567890, command: sc, args: ['start', 'AwsReplicationVolumeUpdaterService'], full_message: ['sc', 'start', 'AwsReplicationVolumeUpdaterService']] 2022-08-09 07:17:19,873 DEBUG command finished [agent_version: 1.5.20, installation_id: 0123456789, mac_addresses: xyz,xyz, _origin_client_type: installer, account_id: abc, _origin_instance_id: xyz, _origin_source_server_id: s-1234567890, command: sc, args: ['start', 'AwsReplicationVolumeUpdaterService'], full_message: ['sc', 'start', 'AwsReplicationVolumeUpdaterService'], stdout: SERVICE_NAME: AwsReplicationVolumeUpdaterService TYPE : 10 WIN32_OWN_PROCESS STATE : 2 START_PENDING (NOT_STOPPABLE, NOT_PAUSABLE, IGNORES_SHUTDOWN) WIN32_EXIT_CODE : 0 (0x0) SERVICE_EXIT_CODE : 0 (0x0) CHECKPOINT : 0x0 WAIT_HINT : 0x7d0 PID : 5564 FLAGS : , exit_code: 0]