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Computers suddenly missing on network
Our home network has a desktop and 3 laptops. The 3 laptops all print through the network to the printer attached to the desktop.
For some reason only 1 of the laptops now shows in the desktop network folder. The other 2 have vanished and cannot see the desktop either so no printing. I have tried running both Homegroups and using names & passwords but no difference. I also have a server on the network and that has vanished.
I have checked the credentials and all passwords and names are correct.
I have removed Avast anti-virus and have Windows firewall set to default settings running with Defender.
Windows 10 is the latest version 1511 on all the PCs.
Any ideas?