⚠️ You are a developer using WinDbg , a network engineer configuring a virtual Cisco router , or using legacy industrial software that requires a COM interface. To help you get the right setup, let me know: Are you using VMware Workstation, Player, or ESXi ? Do you need to use a serial port for a specific task? Did this start after moving the VM to a new computer? I can provide the exact steps for your specific version. Share public link
Scroll down the virtual hardware list until you locate .
When the VM starts, the following informational message is logged: virtual device serial0 will start disconnected
Alternatively, to completely remove the device via text, delete all lines starting with serial0. .
Here are the step-by-step methods to resolve this issue in VMware Workstation/Player and vSphere. Method A: Disabling the Serial Port (If not needed) ⚠️ You are a developer using WinDbg ,
serial0.present = "TRUE" serial0.startConnected = "FALSE"
I can provide tailored instructions based on your specific environment. Share public link Did this start after moving the VM to a new computer
No. Many pre-built Linux appliances include a virtual serial port for legacy console access. The message is cosmetic.
Which and version you are using (e.g., Workstation 17.5)?