Please try the next:
1) Virtual Switch Manager
2) New virtual network switch - highlight 'External', and select 'Create Virtual Switch'.
3) I then selected my network adapter under the pull down list, and checked the box for 'Allow management operating system to share this network adapter'.
** Note: when you Apply this it does drop your current network connection for a few seconds, but then returns conection.
4) I then went back into the Virtual Machine Settings - right click the VM and select settings when it is off.
5) I then changed the Network Adapter to be my new External Switch.
Hope this helps with your query,
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