Suddenly can't see other computers on network

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  1.    03 Aug 2018 #21

    Well, wouldn't it be nice if all the web sites with complicated detail about SMB v.1 simply said to check in "Turn Windows Features On and Off." Yes, Ver 1 is installed, at least on laptop B. Another thing to check on Desktop A when I get access in an hour or so.
    Gotta love Ten Forums ...
    I had a feeling SMBv1 was installed on B and you're probably going to need/want to install/enable SMBv1 Client & Server on all your PC's. I mentioned that SMBv1 is deprecated, but it has been patched on Win10 against WannaCry and there is very little risk in using it on a home network ... IMHO ... I used it for along time (even before it was patched) without any issues, until I got my new router just a couple months ago :)


    Note: I know I've thrown a lot info at you, just take your time with this stuff :)
      My ComputersSystem Spec

  2.    03 Aug 2018 #22

    Okay, sorry for the delay--I had to run some errands, as well as waiting for these machines to be available. Here's the run-down:

    Laptop C Ver 1803 Build 17134

    Searches in browser by name do bring up files. (I can see all other computers in Network normally with this laptop.)SMB 1.0 is on.
    Homegroup is not installed in services on this machine. (Well, that does not seem to prevent it from finding the NAS and other computers.)
    Function Discovery Provider Host and Function Discovery Resource Publication are set to manual on this machine.

    Desktop A Ver. 1803, Build 17134.

    Searches in browser by name do NOT bring up files. This includes if the NAME and shared folder is the one for THIS machine.
    (I cannot see most other computers in Network normally with this laptop.)
    SMB 1.0 is ON in "Turn Windows Features on and off."
    Homegroup is NOT installed in services on this machine.
    Function Discovery Provider Host and Function Discovery Resource Publication are set to Automatic on this machine--but that is because I changed a bunch of services to Automatic earlier. However, I have not had a chance yet to restart the machine.

    The only computer you can see from Desktop A in Network is Laptop B.

    So it appears the main difference between A and C is that A will not search by computer name. C will, even though they are both the same version and build of Windows.

    [Edit:] The obvious question is, what is causing this behavior, if everything else is pretty much the same? Also, why does Desktop A always show Laptop B in Network, but no other computer?
    Last edited by bilateral; 03 Aug 2018 at 21:50.
      My ComputerSystem Spec

  3.    03 Aug 2018 #23

    The only computer you can see from Desktop A in Network is Laptop B
    What vers of Win10 is B ?
    Does B have SMBv1 installed/enabled?

    Since you're going to be using SMBv1, check Window Services and make sure the Computer Browser service is running and startup type is Automatic on all PC's. I would also make sure that Function Discovery Provider Host and Function Discovery Resource Publication are set to Automatic or Automatic Delay and running on all PC's.

    After making changes, it's always a good idea to reboot PC's.

    The obvious question is, what is causing this behavior, if everything else is pretty much the same? Also, why does Desktop A always show Laptop B in Network, but no other computer?
    Yea, that's the $64,000 question and the joys of network sharing on Win10 1803
      My ComputersSystem Spec

  4.    04 Aug 2018 #24

    Laptop B (which seems like the easiest for other computers to see) is Version 1709 Build 16299. However, it is pressing me to update to 1803. All three computers have SMB v.1 installed. I'm glad they patched that, because I did read about the concern.


      My ComputerSystem Spec

  5.    04 Aug 2018 #25

    EUREKA!! YIKES!!!

    Computer A is Windows 10 HOME. At first this seemed highly significant to me, because when I went to switch the Computer Browser to Automatic, I discovered there was no Computer Browser in Services. Searching told me that the reason it was missing was because it is not installed in HOME. However, this theory was blown when I looked at Laptop C, which has the same version and build as Desktop A, and is also HOME--but it does have a Computer Browser in Services.

    So, I am restarting the computer with all the other changes; but why is there no Computer Browser Service in Computer A, and is it possible to install the Computer Browser in HOME?
      My ComputerSystem Spec

  6.    04 Aug 2018 #26

    So, I am restarting the computer with all the other changes; but why is there no Computer Browser Service in Computer A, and is it possible to install the Computer Browser in HOME?
    Computer Browser Service is tied to SMBv1, it gets installed when you install SMBv1. After the restart if it's still not showing in Windows Services, then you may have to uninstall then reinstall SMBv1 on A. Make sure you reboot PC after each action.

    Note: When you uninstall or install SMBv1 it should ask you to reboot.
      My ComputersSystem Spec

  7.    04 Aug 2018 #27

    Okay, I see. Yes, Computer Browser did get installed on A after a reboot. And now the only computer that comes up in Network is A itself. B, which used to be more prevalent is not coming up yet, nor anything else. (This is after changing the Function Discovery services to automatic.) I will let this computer be used for a few hours and see if it starts to register any other items on the Network.

    By the way, the restart was after changing this whole list to all automatic, from the post I quoted from answers.microsoft from Rolando Vil. [Note: Except I think the Homegroup items no longer exist:

    2. On the Services window, look for the following services:
    DNS Client
    Function Discovery Provider Host
    Function Discovery Resource Publication
    Peer Networking Grouping
    HomeGroup Provider
    HomeGroup Listener
    SSDP Discovery
    UPnP Device Host

    3. Reset all these services under the Startup Type tab from Manual to Automatic.

    Computer cannot see itself and other computers cannot see it - Microsoft Community

    Maybe I should uninstall SMB v.1, restart, then install it again, and restart?

      My ComputerSystem Spec


  8. Posts : 36
    Windows 7 Professional/Windows 10 Home
       04 Aug 2018 #28

    Function Discovery Resource Publication

    That's the only service I needed to change from Manual to Automatic so that my main PC and laptop could see each other properly on the Network. I share an entire partition between both machines.

    Prior to changing the service, sometimes Networking would work properly, sometimes not. Sometimes the main PC could see the laptop but not the other way around and vice versa.

    Apparently the startup type for this service was changed from Automatic to Manual in the latest Windows 10 1803.

    https://www.ghacks.net/2018/04/17/fi...-1803-upgrade/
      My ComputerSystem Spec

  9.    04 Aug 2018 #29

    After several hours, no change. Computer A can only see itself in Network. Should I try uninstalling SMB v.1 and then reinstalling it?
      My ComputerSystem Spec

  10.    04 Aug 2018 #30

    After several hours, no change. Computer A can only see itself in Network. Should I try uninstalling SMB v.1 and then reinstalling it?
    I wouldn't right now, as I don't think that will help.

    So all the other PC's can see and access each other (including the NAS) from File Explorer > Network. It's just A that's being a PITA ?

    Edit:
    For PC A ...
    1. Computer Browser Service is running and startup type set to Automatic ?
    2. You can still manually access the other PC's and NAS using File Explorer > Address Bar > \\PCNAME or \\IPADDRESS correct?
    Last edited by Eagle51; 04 Aug 2018 at 12:15.
      My ComputersSystem Spec


 
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