Konica Minolta - Installation fails with "One or more errors occurred"

The installation of embedded terminal on Konica Minolta device fails. Management Interface shows “One or more errors occurred”, the terminalserver.log shows one of the following:

2020-08-25 15:18:48.1014 ERROR  5| CheckLoginStep | DoStep | [10.110.80.230][3] CheckLogin failed KONICAMINOLTA.OpenAPISDK.CommonLibrary.SDKLibraryWebException:
The underlying connection was closed: An unexpected error occurred on a send. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host

2020-10-02 16:42:15.2692 ERROR 42| CheckLoginStep | DoStep | [10.181.22.10][10] CheckLogin failed KONICAMINOLTA.OpenAPISDK.CommonLibrary.SDKLibraryWebException: 
The underlying connection was closed: An unexpected error occurred on a send. ---> System.IO.IOException: Authentication failed because the remote party has closed the transport stream

OpenAPISDK log contains repeated requests (usually AppReqExtLogin) without any response (e.g. AppResExtLogin) .

The situation typically occurs when YSoft SafeQ is unable to establish TCP communication to the MFD using OpenAPISDK library.

Resolution

Verify the following:

1. Operating system on YSoft SafeQ server is up to date.

2. Firmware used on the MFD is in compliance with the recommendation of Konica Minolta BEU for this MFD model.

3. MFD is configured according to the documentation chapter Configuring Konica Minolta devices.

4. The exceptions in the Firewall between the YSoft SafeQ server and the MFD are configured according to Network Communication.

Test the following:

All tests must be performed from the YSoft SafeQ server.
In multi-server environments, ensure tests are conducted on the SPOC responsible for terminal installation.

1. MFD web interface is accessible via https from the Internet browser.

2. Authentication as Administrator in the admin mode works, logout also works.

3. MFD port 50003 is accessible:

   • on the SPOC go to start > run > powershell.exe

   • Test-NetConnection -ComputerName <IP address of MFD> -Port 50003 -InformationLevel Detailed

   • if the Test-NetConnection fails to connect on port but ping works, validate the Firewall configuration and if the port 50003 is enabled on device

   • if the Test-NetConnection fails both to connect and to ping, validate the Firewall configuration and network connectivity

4. Konica Minolta tool OpenAPIApplicationManager is able to connect to MFD and list the applications.

Next Steps:

• If the tests are failing, contact Konica Minolta for support.

• If all tests pass, proceed with the installation of the embedded terminal again.

Diagnostic data needed by Y Soft for assistance with troubleshooting:

• Detailed description of issue
  Include date, time, MFD IP address, model name, firmware version, amount of affected MFDs, how frequent the issue is, when the issue started occurring

• Outcome of above mentioned tests

• Support information package
  YSoft SafeQ management interface → log in as administrator → Dashboard → click Support information → click "Download support information"

• YSoft SafeQ log files the time of occurrence
  Refer to Tips for collecting of YSoft SafeQ 6 log files

• Network communication capture between the YSoft SafeQ server and MFD using the Wireshark tool. Network capture has to cover the same timeframe as the log files
  Refer to Capturing network traffic using Wireshark tool

• Any log files and any sort of configuration pages you may obtain from the MFD

• Output from SSLScan on MFD TCP port 443 and 50003
  Tool available at https://github.com/rbsec/sslscan/releases
  Syntax: sslscan <MFD_IP>:50003