Current Port is Owned by YESpay/Worldpay
When starting IPC a ‘Current Port is Owned by YESpay/Worldpay’ error appears
The IPC software is already running on the system.
Check if IPC is running by using the System Tray. See if the EMBOSS icon is shown or not (see the highlighted icon in the screenshot above).
If the EMBOSS icon appears, IPC is already running. Click the icon and select Exit to quit the instance of IPC.
If IPC will not exit, we recommend restarting the IPC host machine.