failed to connect to all addresses error

Hello,

When using Greengrass v2 with Sagemaker component the intermittent error below is seen when the device powers off and on. Could you please advise what could be the possible errors?

eturn self.client.ListModels(agent_pb2.ListModelsRequest()) File "/usr/local/lib/python3.6/dist-packages/grpc/_channel.py", line 923, in call return _end_unary_response_blocking(state, call, False, None) File "/usr/local/lib/python3.6/dist-packages/grpc/_channel.py", line 826, in _end_unary_response_blocking raise _InactiveRpcError(state) grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with: status = StatusCode.UNAVAILABLE details = "failed to connect to all addresses" debug_error_string = "{"created":"@1650457997.824138381","description":"Failed to pick subchannel","file":"src/core/ext/filters/client_channel/client_channel.cc","file_line":4143,"referenced_errors":[{"created":"@1650457988.031111729","description":"failed to connect to all addresses","file":"src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.cc","file_line":398,"grpc_status":14}]}"