I have a VMWare virtual machine, Workstation version 9, setup running Win7. I use a USB 2.0 to RS232 Serial Adapter from Cables Unlimited in this virtual machine. I use the menu options under VM - Removable devices to connect this adapter. However I am having two problems getting the adapter to stay connected.
1. The device is shown as connected in the menu, when I start the virtual machine up. However, the serial port will not see any information coming in from the port until I manually disconnect then reconnect the device, using the Removable Devices menu.
2. Once the device has been working correctly for a while, it will suddenly be disconnected on its own. When it happens, I hear the noise of it being disconnected, but the menu still shows the device is connected. I will have to close the port from the program I am using, go to the Removable Devices menu and manually disconnect and reconnect the device again. Once I do that and reopen the port, everything works for a while again.
Does anyone know what could be causing this and how I can get it to work right?
Note: I did not have this problem when I was using Workstation 7.