SKF Microlog CMXA-75 Unable to Connect to Observer 13.5 (Windows 10) – Driver Error

Dear SKF Support,

We are currently attempting to connect a Microlog CMXA-75 to Observer (OB) version 13.5 on a Windows 10 system.

We have followed the official “Serial Communication Setup Guide” provided by SKF; however, the device is still unable to establish a connection and a driver-related issue persists.

The current setup and status are as follows:

• Firmware has been upgraded to version 4.06

• Device communication mode is set to Serial over USB (PC Comms → Serial)

• SKF Sync Driver has been installed successfully

• The device is recognized in Device Manager as “SKF Microlog (COM3)”

• Basic hardware checks have been completed (USB cable replaced, different USB ports tested, device and PC rebooted)

However, the issue remains:

• Device status shows: “Currently, this hardware device is not connected (Code 45)”

• The device is not able to communicate with the Observer software

We would appreciate your assistance in confirming whether this issue may be related to:

1. Compatibility between Firmware 4.06 and the installed Sync Driver

2. Possible USB communication module failure on the device

3. Any known issues or recommended troubleshooting steps

We can provide additional screenshots or logs if required.

Thank you for your support.

Best regards,