Windows 10: Accessing other computers on the network...Help! Solved

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  1.    06 Jul 2018 #21

    Rebooted my PCs a couple of times, looks like this is issue is permanently fixed for me. Interesting reading, @Barman58. I'm worried about WannaCry ransomware, but I also need to access files among my three PCs (two laptops and one PC) often. I never use a third-party solution when there's a native one on Windows that works properly, and because I'm very lazy as well, so I don't have much of a choice unless turning SMBv1 protocol, even with its security flaws.
      My ComputerSystem Spec

  2. Barman58's Avatar
    Posts : 2,782
    Windows 10 Pro x64 1803 - 17134.5 XP/Vista/Win7/Win8.1 in VM for testing
       06 Jul 2018 #22

    ksio89 said: View Post
    Rebooted my PCs a couple of times, looks like this is issue is permanently fixed for me. Interesting reading, @Barman58. I'm worried about WannaCry ransomware, but I also need to access files among my three PCs (two laptops and one PC) often. I never use a third-party solution when there's a native one on Windows that works properly, and because I'm very lazy as well, so I don't have much of a choice unless turning SMBv1 protocol, even with its security flaws.
    You could try without the SMBv1 enabled if you are only looking at windows devices (No TVs or media centres or NAS drives) as windows should then use SMBv2 or SMBv3 which are not susceptible to Wannacry.

    Make sure that Function Discovery Provider Host & Function Discovery Resource Publication as set to Automatic (Delayed Start) and you should be good to go

    To be honest, if all your systems are Windows 10 and you update your systems as prompted by windows you are safe for the Wannacry vulnerability and adding any of the better known Security Suites, even free versions should add that extra bit of confidence when surfing the web
      My ComputerSystem Spec

  3.    06 Jul 2018 #23

    badcrc said: View Post
    I have 6 machines used for network render, and I need to manually transfer files all the time. I was getting so frustrated with network access from explorer being intermittent - even after doing network reset on all machines. The odd thing is - I could access the pcs by IP, but they either disappear from explorer or 'access denied'.

    I solved this by making desktop shortcuts to the IPs (R-click new shortcut), and sticking these in a folder. Now I have access to all my render nodes, but the big question is - why does Microsoft keep breaking networking? It must be a deliberate strategy...

    Attachment 194757
    That's a great idea. I gave it a shot, but it doesn't work for me.

    I think I'm going to spend the afternoon with one of my other Windows 10 laptops and just go through all the settings and see what's different.
      My ComputerSystem Spec

  4.    06 Jul 2018 #24

    This is so damn frustrating. I've gone through security settings, network settings, etc. All settings are the same as my computers that are working. The only thing I haven't done is looked at the registry. Guess that's next.
      My ComputerSystem Spec

  5.    07 Jul 2018 #25

    Well, I found it. I was using my laptop to transfer files from my desktop to my server while I worked.

    There were some minor differences in the registry since I have different programs on each machine and my laptop is W10 Home and my desktop is W10 Pro. But, the fix was...

    Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters\AllowInse cureGuestAuth -> change 0 to 1.

    Thanks to everyone for the help/suggestions.
      My ComputerSystem Spec

  6. f14tomcat's Avatar
    Posts : 36,977
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)
       07 Jul 2018 #26

    ARAMP1 said: View Post
    Well, I found it. I was using my laptop to transfer files from my desktop to my server while I worked.

    There were some minor differences in the registry since I have different programs on each machine and my laptop is W10 Home and my desktop is W10 Pro. But, the fix was...

    Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters\AllowInse cureGuestAuth -> change 0 to 1.

    Thanks to everyone for the help/suggestions.
    Glad you found a fix! Good job!
      My ComputersSystem Spec

  7. Barman58's Avatar
    Posts : 2,782
    Windows 10 Pro x64 1803 - 17134.5 XP/Vista/Win7/Win8.1 in VM for testing
       07 Jul 2018 #27

    The purpose of that key gives a clue to the actual fault causing the issue - The permissions are not set correctly to give a secure connection between devices so they would normally be rejected "Silently" and thus the network would appear, not to work. (Silent rejection gives no indication of the rejection so the potential attack has no data to work with )

    Checking the actual sharing and NTFS permissions should indicate some slight error, but as long as you are happy there should not be major consequences of not fully securing access on a home system

    Microsoft's detail on he Key is here ...

    AllowInsecureGuestAuth | Microsoft Docs
      My ComputerSystem Spec

  8.    07 Jul 2018 #28

    Barman58 said: View Post
    The purpose of that key gives a clue to the actual fault causing the issue - The permissions are not set correctly to give a secure connection between devices so they would normally be rejected "Silently" and thus the network would appear, not to work. (Silent rejection gives no indication of the rejection so the potential attack has no data to work with )

    Checking the actual sharing and NTFS permissions should indicate some slight error, but as long as you are happy there should not be major consequences of not fully securing access on a home system

    Microsoft's detail on he Key is here ...

    AllowInsecureGuestAuth | Microsoft Docs
    As you mentioned, with it being on a home network, I'm not too concerned about it. Interestingly enough, none of my other Windows 10 machines (Home or Pro) even have it.
      My ComputerSystem Spec

  9. Ztruker's Avatar
    Posts : 6,389
    Windows 10 Pro X64 17134.191
       07 Jul 2018 #29

    I'm going to try this at the shop MOnday. I have been fighting this problem for months now and if this fixes it I'll be overjoyed! Thank you.
      My ComputersSystem Spec

  10.    08 Jul 2018 #30

    Barman58 said: View Post
    You could try without the SMBv1 enabled if you are only looking at windows devices (No TVs or media centres or NAS drives) as windows should then use SMBv2 or SMBv3 which are not susceptible to Wannacry.

    Make sure that Function Discovery Provider Host & Function Discovery Resource Publication as set to Automatic (Delayed Start) and you should be good to go

    To be honest, if all your systems are Windows 10 and you update your systems as prompted by windows you are safe for the Wannacry vulnerability and adding any of the better known Security Suites, even free versions should add that extra bit of confidence when surfing the web
    Hijacking this thread again, I'm just posting to say that network browsing still works on all PCs after disabling SMBv1, thank you once more. As you said, I lost access to my TV on my network, but as I never access any media from it, i don't care. So, with SMBv1 disabled,Windows always updated and Windows Defender enabled, I believe all my machines are protected against WannaCry, right? Looks like those two services are essential, thus I wonder if re-enabling TCP/IPv6 will break things, but I believe it won't.
      My ComputerSystem Spec


 
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