Hello,
I have 2 Blue Prism environments - one is running server 2016 and the other is running server 2022.
The ASCR configuration is the same between the two environments.
On the server 2022 environment, we are receiving the callback channel error popup whenever we try to start processes in the control room or with taking any actions in the control room.
Here is an excerpt from the logs located C:\ProgramData\Blue Prism Limited\Blue Prism\Logs
Grpc.Core.RpcException: Status(StatusCode="Unavailable", Detail="failed to connect to all addresses", DebugException="Grpc.Core.Internal.CoreErrorDetailException: {"created":"@1739212675.211000000","description":"Failed to pick subchannel","file":"..\..\..\src\core\ext\filters\client_channel\client_channel.cc","file_line":3009,"referenced_errors":[{"created":"@1739212652.766000000","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}]}")
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at BluePrism.ClientServerResources.Grpc.RegisterClientCallback.<HandshakeAsync>d__38.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at BluePrism.ClientServerResources.Grpc.InstructionalClientGrpcController.<<RegisterClient>b__64_0>d.MoveNext()
2025-02-10 12:37:58.2432-06:00 <servername> INFO BluePrism.ClientServerResources.Grpc.InstructionalClientGrpcController processid=5876 thd=27 1699332146080 ..\..\..\src\core\ext\filters\client_channel\subchannel.cc:980: Failed to connect to channel, retrying
2025-02-10 12:37:58.2432-06:00 <servername> INFO BluePrism.ClientServerResources.Grpc.InstructionalClientGrpcController processid=5876 thd=grpc 3 (cq 3) 0 ..\..\..\src\core\ext\filters\client_channel\http_connect_handshaker.cc:332: Connecting to server <servername>:10000 via HTTP proxy ipv4:xxx.xxx.212.93:80
2025-02-10 12:37:58.2588-06:00 <servername> INFO BluePrism.ClientServerResources.Grpc.InstructionalClientGrpcController processid=5876 thd=grpc 3 (cq 3) 0 ..\..\..\src\core\ext\filters\client_channel\subchannel.cc:1012: Connect failed: {"created":"@1739212678.262000000","description":"HTTP proxy returned response code 502","file":"..\..\..\src\core\ext\filters\client_channel\http_connect_handshaker.cc","file_line":252}
2025-02-10 12:37:58.2588-06:00 <servername> INFO BluePrism.ClientServerResources.Grpc.InstructionalClientGrpcController processid=5876 thd=grpc 3 (cq 3) 0 ..\..\..\src\core\ext\filters\client_channel\subchannel.cc:957: Subchannel 0000018BA598A500: Retry in 42855 milliseconds
