using Pro 4.0.15
3 PCs all Windows 10 Home 1709
network worked more or less, for some reason PC1 was not seen by PC2 at all, so I ran "Network Repair in Safe mode on PC1, now PC1 sees nothing at all.
I use usernames and passwords and SMBv1 client and server are installed on both machines.
I double checked all the sharing options and everything is correct.
I may have forgotten to make a restore point, I do have an image from a week ago.
thanks for any help.