Serial port connection problem

[schomke]

Hi all.

I have VMware wrokstation Pro v 6, with installed windows 10 Pro x64.

Also, I use USB-to serial convertor with Prolific driver as virtual com port. 

It was worked correct with some devices. After a while connection refused. Com port is enabled but it seems that something block communication.

When I change USB compatibility, reset VM, and try to connect 1st time it works. When I try to connect 2nd time connection problems appear.

I also try to add serail port and connect to phisical drive but no sucess.

Also, there is printer presented and it occupies serial port 0 (should be COM1) of the VM.

Can this be a problem?

[RDPetruska]

What is your host OS?

Are you attaching the USB-to-Serial device to the host, and selecting the COM port to attach to the Serial port of the VM?  Or are you attaching the device to the VM, and having the drivers installed in the VM, etc.?

[schomke]

Sorry RDPetruska,

My host OS is Windows 10 Pro x64.

1. I attach device to the VM, with drivers installed in the VM.

2. Also I try with adding serial port and mapping to Com port of the host.

Also this driver is installed on the host.

When I try communication directly from the host it works, but from the VM not.

[schomke]

Hi all.

I found solution. After removing Printer from VM settings, everything works good with my communicatios. So, there is some conflicts between virtual printer which occupies serial port 1 and serial port driver.

I also try to add printer from -vmx file. but to serial port 2 with next entries

serial1.present = "TRUE"

serial1.fileType = "thinprint"

serial1.fileName = "thinprint"

But now I can't connect to host printers anymore.

I see Printer it in VM settings, but when try to add host printers can't find.