Thanks to galileo1564 for the FDResPub "work around" solution.
As a Win 8.1 user until earlier this year I have always experienced this issue, migrated to Win 10 Home with a new build, Gigabyte MoBo, Ryzen-5 CPU desktop PC and had absolutely no issues for the first 2 months until Win update 1809 came along when I started to get random, local network disconnect issues with PC running, had to un-install MoBo, Realtek NIC and re-install to restore LAN comm's even though the network device showed completely health in Device Manager.
As there was recorded history of Realtek LAN driver conflict with Win 10, again believed to be associated with Win updates, decided to fit an Intel PCIe NIC, this worked very well for a week or so then returned to the same issue.
Have tried all combination of drivers on both the Realtek and Intel NIC's without success.
The local network device display issue in Win Explorer also comes and goes and appears to coinside with the random network disconnects.
The good news is the FDResPub, Scheduled Task work around restores both the NIC comm's and Win Explorer LAN device visibility with a re-boot, still annoying but a lot easier than previous requirements.
Perhaps MS will get around to supplying a fix at some stage but won't hold my breath on that one !