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#51
Open the services menu by clicking start and then clicking RUN and typing 'services.msc' and pressing enter.
Look for the following services in the list:
· DNS Client
· Function Discovery Provider Host
· Function Discovery Resource Publication
· Peer Networking Grouping
· HomeGroup Provider
· HomeGroup Listener
· SSDP Discovery
· UPnP Device Host
Make sure they are set to AUTOMATIC START instead of MANUAL.
Go down the list one by one and even if they are running do a mouse right click and SELECT "RESTART".
On the ones that are showing a blank and not running right click and SELECT "START".
That's all I did and all 3 Laptops are back in the Networking Panel and in the Homegroup WORKGROUP.