Home network - not all computers can see each other

Eagle51 said:

Just an FYI ...
You may want to uncheck SMB 1.0/CIFS Automatic Removal or at least go to Task Scheduler Libray > Microsoft > Windows > SMB and disable the task it adds for SMBv1 removal.

• If the SMBv1 client is not used for 15 days in total (excluding the computer being turned off), it automatically uninstalls itself.
• Automatic removal of SMB1 after 15 days is a one-time operation. If an administrator re-installs SMB1, no further attempts will be made to uninstall it.

From this link ... https://support.microsoft.com/en-us/...r-version-1709

Thanks for that. It's last run time was about when I started having issues. I've disabled them now just in case.

Microsoft has stated that SMB1 is turned off by default because of a vulnerability to Ransomware attacks. Look in Services and set Function Discovery Provider Host and Function Discovery Resource Publication to Automatic-Delayed Start on each machine. This works without turning on SMB1.

dmholt57 said:

Microsoft has stated that SMB1 is turned off by default because of a vulnerability to Ransomware attacks. Look in Services and set Function Discovery Provider Host and Function Discovery Resource Publication to Automatic-Delayed Start on each machine. This works without turning on SMB1.

I'll give that a try.

dmholt57 said:

Microsoft has stated that SMB1 is turned off by default because of a vulnerability to Ransomware attacks. Look in Services and set Function Discovery Provider Host and Function Discovery Resource Publication to Automatic-Delayed Start on each machine. This works without turning on SMB1.

Just tried it in a VM and it didn't work for me. VM is VirtualBox Fall Creators Update. I couldn't see the host or a NAS. Fired up SMB1 and they are both back. So I'll stick with SMB1 for the moment.

Not sure how it works in VM, but it worked as suggested by Microsoft for the six pcs I have networked. Hopefully Microsoft will come out with some fixes soon.

dmholt57 said:

Not sure how it works in VM, but it worked as suggested by Microsoft for the six pcs I have networked. Hopefully Microsoft will come out with some fixes soon.

I'm probably not doing it right. The thing that I really need is access to the NAS.
It was behaving very strangely when SMB1 was turned off. It didn't show in explorer unless I rebooted the NAS but only for that windows session. I could access the shares by typing the address into explorer and get at the files.
My file backup program FreeFileSync would work if run manually but not if run on a schedule under my USERID. Really strange behaviour.

I don't think SMB1 is much of a risk running in VM. They are suggesting mapping the network drives, I have done that also and they show up every time. But the networks sometimes don't show and you do a reboot and they show, I have been patient, but I think its time for them to step up and fix the damn thing.

dmholt57 said:

I don't think SMB1 is much of a risk running in VM. They are suggesting mapping the network drives, I have done that also and they show up every time. But the networks sometimes don't show and you do a reboot and they show, I have been patient, but I think its time for them to step up and fix the damn thing.

I was just testing in a VM. I'm running it on the host also. I have Malwarebytes premium and my backup images are protected by Macrium Image Guardian so I think I'll be OK.