Win11 24H2 Installed, now no network sharing

DamienC · Oct 20, 2024

Wolfzz said:
OK with 24H2 Pro 26100.1742 I had this problem.
My Windows 10 Pro could access Windows 11 24H2 through my network, however Windows 11 24H2 could not access my Windows 10 Pro or any earlier versions of Windows 11 Pro Computers this only happened since I went to 24H2.
To fix this issue I did both of these changes in Local Group Policy Editor. And Now all is happy including me. I hope this helps.

Computer Configuration, Windows Settings, Security Settings, Local Policies, Security Options
Double click on Microsoft Network Client: Digitally sign communications (always)
Double click on Microsoft Network Client: Digitally sign communications (if server agrees)
Set both of these to "Disabled"
Click on OK.

Computer Configuration, Administrative Templates, Network, Lanman Workstation
Double click on "Enable Insecure Guest Logons"
Set this to "Enabled"
Click on OK.

I had to register for this place, just to say "Thank You, Thank You, Thank You!!!"

I have tried everything I could think this morning, from enabling and disabling SMB, NFS, adding additional .net stuff, creating new local user accounts because I refuse to use a Microsoft Account, and nothing absolutely nothing worked, including what worked last time which was the "Lanman Workstation", but this 1 post by you got it working.

I just want to be able to share files between my gaming pc and my obs pc without having to first put the files on my Unraid Server and then pull them from that on the other machine.

wozuden · Oct 21, 2024

Bree said:
In 24H2 tighter security restrictions that were previously only enforced in Enterprise and above are now on by default in Pro. Insecure logins are not allowed by default, you now cannot connect to another PC if you have a local account with no password.

There are two ways to connect. The first is to create a Windows Credential for an account with a password on that other PC.

The second is to turn off the restriction on insecure logins.

Enable insecure guest logons in SMB2 and SMB3 for Windows client and Windows Server

This article describes how to enable guest logons policy in SMB2 and SMB3 for Windows client and Windows Server devices using Group Policy and PowerShell.

learn.microsoft.com

View attachment 110750

thank you. i was very scared when i couldn't open a program which needs data from my server through LAN.

i wrote \\COMPUTER-NAME into windows-explorer's path, after i saw that double-clicking on the Server doesn't work, theni was googling and found your post, then i came back to the clien-pc with windows 11 24h2 and saw

i inserted the login data of the account on from the server on this client-PC and everything works again.
had to write the \\COMPUTER-NAME in windows-explorer and save the login data

somehow this client-PC connects slower to the Server through LAN. but the workers will understand to simply click on "Connect" until it works. they need to restart the program but it will work and i am rescued. i didn't open gpedit.msc. Verbinden = Connect

if it's green then it's perfectly connected

but it needs a restart

also the regedit- key >>> regedit => HKEY_CURRENT_USER => Control Panel => Desktop => "AutoEndTasks" = 1 <<< got deleted, had to start over again (because this problem won't shutdown and won't kill itself)

even Win+R => shell:startup got completely erased! had to start over again, so that the program will start automatically.

also the protocol/history of all tasks in the task scheduler (important is the task "shut down automatically at 6 pm") is completely disabled. had to enable again.

Win7ine · Oct 25, 2024

"Network Sharing" on Private Network works for me between several machines and a share on Router with old Samba 1.0 turned off but I can only see local machine if I manually restart the "FDResPub" service. This is still the case with the latest preview release 26100.2161.
It makes no difference if said service is set to "Automatic", "Automatic Delayed" or the default "Manual Triggered".

cereberus · Oct 26, 2024

lafargeotte said:
Thank you so much Bree.

However, I have now upgraded another laptop and despite having made the change as you suggested, that does not help. As a stop gap, I have passworded that laptop, and then networking is fine.
The desktop and first laptop upgraded now work fine.

You can run netplwiz to login automatically and networking still works.

Repairs · Oct 29, 2024

Here is a workaround.

Batch:

@echo off
:: Check for Administrator privileges
net session >nul 2>&1
if %errorLevel% neq 0 (
    echo This script requires Administrator privileges. Please right-click and select "Run as administrator."
    pause
    exit /b
)

:: Enable SMBv1
echo Enabling SMBv1...
dism /online /enable-feature /featurename:SMB1Protocol -NoRestart

:: Check if SMBv1 was enabled successfully
if %errorLevel% equ 0 (
    echo SMBv1 enabled successfully.
) else (
    echo Failed to enable SMBv1. SMBv1 might already be enabled.
)

:: Adjust Local Security Policy for Guest Access
echo Configuring Local Security Policy for Guest Access...
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa" /v forceguest /t REG_DWORD /d 1 /f

:: Disable SMB Signing Requirement on Client
echo Disabling SMB Signing Requirement on the Client...
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters" /v RequireSecuritySignature /t REG_DWORD /d 0 /f

:: Prompt to restart the computer
echo Configuration complete. A restart is required for changes to take effect.
pause
shutdown /r /t 5

Repairs · Oct 30, 2024

Sorry That batch was missing a registry here is the updated.

Batch:

@echo off
:: Check for Administrator privileges
net session >nul 2>&1
if %errorLevel% neq 0 (
    echo This script requires Administrator privileges. Please right-click and select "Run as administrator."
    pause
    exit /b
)

:: Enable Insecure Guest Logins
echo Enabling Insecure Guest Logins in the Registry...
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters" /v AllowInsecureGuestAuth /t REG_DWORD /d 1 /f

:: Check if the registry modification was successful
if %errorLevel% equ 0 (
    echo Insecure Guest Logins enabled successfully.
) else (
    echo Failed to modify the registry.
    pause
    exit /b
)

:: Enable SMBv1
echo Enabling SMBv1...
dism /online /enable-feature /featurename:SMB1Protocol -NoRestart

:: Check if SMBv1 was enabled successfully
if %errorLevel% equ 0 (
    echo SMBv1 enabled successfully.
) else (
    echo Failed to enable SMBv1. SMBv1 might already be enabled.
)

:: Adjust Local Security Policy for Guest Access
echo Configuring Local Security Policy for Guest Access...
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa" /v forceguest /t REG_DWORD /d 1 /f

:: Disable SMB Signing Requirement on Client
echo Disabling SMB Signing Requirement on the Client...
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters" /v RequireSecuritySignature /t REG_DWORD /d 0 /f

:: Prompt to restart the computer
echo Configuration complete. A restart is required for changes to take effect.
pause
shutdown /r /t 5

ayrton_jay · Nov 4, 2024

Wolfzz said:
OK with 24H2 Pro 26100.1742 I had this problem.
My Windows 10 Pro could access Windows 11 24H2 through my network, however Windows 11 24H2 could not access my Windows 10 Pro or any earlier versions of Windows 11 Pro Computers this only happened since I went to 24H2.
To fix this issue I did both of these changes in Local Group Policy Editor. And Now all is happy including me. I hope this helps.

Computer Configuration, Windows Settings, Security Settings, Local Policies, Security Options
Double click on Microsoft Network Client: Digitally sign communications (always)
Double click on Microsoft Network Client: Digitally sign communications (if server agrees)
Set both of these to "Disabled"
Click on OK.

Computer Configuration, Administrative Templates, Network, Lanman Workstation
Double click on "Enable Insecure Guest Logons"
Set this to "Enabled"
Click on OK.

As the friend, "LarsYouPutz" commented above, I also signed up and will start following this forum, due to your help and clear information!

THANK YOU VERY MUCH

I had a network problem, the same mentioned, and even the local IT technicians couldn't solve it.

With your great help, everything worked normally.

*sorry for the bad English, I'm not fluent

Bree · Nov 4, 2024

LarsYouPutz said:
I just wanted to let you know that I registered to this site just to say THANK YOU for this post.

DamienC said:
I had to register for this place, just to say "Thank You, Thank You, Thank You!!!"

ayrton_jay said:
As the friend, "LarsYouPutz" commented above, I also signed up and will start following this forum, due to your help and clear information!

THANK YOU VERY MUCH

Welcome to Eleven Forum LarsYouPutz, DamienC, and ayrton_jay.

flhthemi · Nov 4, 2024

Wolfzz said:
OK with 24H2 Pro 26100.1742 I had this problem.
My Windows 10 Pro could access Windows 11 24H2 through my network, however Windows 11 24H2 could not access my Windows 10 Pro or any earlier versions of Windows 11 Pro Computers this only happened since I went to 24H2.
To fix this issue I did both of these changes in Local Group Policy Editor. And Now all is happy including me. I hope this helps.

Computer Configuration, Windows Settings, Security Settings, Local Policies, Security Options
Double click on Microsoft Network Client: Digitally sign communications (always)
Double click on Microsoft Network Client: Digitally sign communications (if server agrees)
Set both of these to "Disabled"
Click on OK.

Computer Configuration, Administrative Templates, Network, Lanman Workstation
Double click on "Enable Insecure Guest Logons"
Set this to "Enabled"
Click on OK.

I tried all this and still can't see some of the PCs and one NAS device in my Workgroup. So I just wait to see what happens with WU. So frustrating....

Wolfzz · Nov 4, 2024

flhthemi said:
I tried all this and still can't see some of the PCs and one NAS device in my Workgroup. So I just wait to see what happens with WU. So frustrating....

Check if SMB are all ticked in Turn Windows features on or off

flhthemi · Nov 4, 2024

Wolfzz said:
Check if SMB are all ticked in Turn Windows features on or off

Automatic Removal option is NOT ticked all the others are. Does this need to be on too? It's off on all my other PCs but they function (23H2).

flhthemi · Nov 4, 2024

flhthemi said:
Automatic Removal option is NOT ticked all the others are. Does this need to be on too? It's off on all my other PCs but they function (23H2).

FYI - It is an unsupported Zotac BI320. Using this to get this all figured out before I update the others.

Wolfzz · Nov 4, 2024

flhthemi said:
Automatic Removal option is NOT ticked all the others are. Does this need to be on too? It's off on all my other PCs but they function (23H2).

I have always made sure all SMB's are ticked no matter what version of Win 11 I have installed.

Make sure you don't install this version as its plagued with bugs especially with the network issues.
Windows 11 24H2 26100.2152 (KB5044384)

Maybe try install a fresh Win 11 24H2 either
Windows 11 24H2 26100.1742 ISO and update it with KB5044284 or Windows 11 24H2 26100.2033 ISO
You can use Rufus for an unsupported computer
As that is what I did and my WiFi and Ethernet are working fine both ways talking to my Nas and to my older Win 10 Pro Computer
I do use Static IP's though.

Good Luck

flhthemi · Nov 7, 2024

Wolfzz said:
I have always made sure all SMB's are ticked no matter what version of Win 11 I have installed.

Make sure you don't install this version as its plagued with bugs especially with the network issues.
Windows 11 24H2 26100.2152 (KB5044384)

Maybe try install a fresh Win 11 24H2 either
Windows 11 24H2 26100.1742 ISO and update it with KB5044284 or Windows 11 24H2 26100.2033 ISO
You can use Rufus for an unsupported computer
As that is what I did and my WiFi and Ethernet are working fine both ways talking to my Nas and to my older Win 10 Pro Computer
I do use Static IP's though.

Good Luck

Just an FYI - I installed ALL the SMB options and still no joy. So...just waiting for the next update and see what happens.
Thanks for your help!

ScottB · Nov 8, 2024

Wolfzz said:
OK with 24H2 Pro 26100.1742 I had this problem.
My Windows 10 Pro could access Windows 11 24H2 through my network, however Windows 11 24H2 could not access my Windows 10 Pro or any earlier versions of Windows 11 Pro Computers this only happened since I went to 24H2.
To fix this issue I did both of these changes in Local Group Policy Editor. And Now all is happy including me. I hope this helps.

Computer Configuration, Windows Settings, Security Settings, Local Policies, Security Options
Double click on Microsoft Network Client: Digitally sign communications (always)
Double click on Microsoft Network Client: Digitally sign communications (if server agrees)
Set both of these to "Disabled"
Click on OK.

Computer Configuration, Administrative Templates, Network, Lanman Workstation
Double click on "Enable Insecure Guest Logons"
Set this to "Enabled"
Click on OK.

thank you

fsjamescampbell · Nov 14, 2024

Wolfzz said:
OK with 24H2 Pro 26100.1742 I had this problem.
My Windows 10 Pro could access Windows 11 24H2 through my network, however Windows 11 24H2 could not access my Windows 10 Pro or any earlier versions of Windows 11 Pro Computers this only happened since I went to 24H2.
To fix this issue I did both of these changes in Local Group Policy Editor. And Now all is happy including me. I hope this helps.

Computer Configuration, Windows Settings, Security Settings, Local Policies, Security Options
Double click on Microsoft Network Client: Digitally sign communications (always)
Double click on Microsoft Network Client: Digitally sign communications (if server agrees)
Set both of these to "Disabled"
Click on OK.

Computer Configuration, Administrative Templates, Network, Lanman Workstation
Double click on "Enable Insecure Guest Logons"
Set this to "Enabled"
Click on OK.

Wolfzz, Thank you so much. You are a genius!! I can't tell you how much this has helped. I have lost two working days at my small office, trying to resolve networking a drive with all the work data on it. Absolute star!!!!

butifarra · Nov 25, 2024

Stigg said:
I tried your settings, but sadly it didn't work for me. I see that it's helped some people though.

For those, like you, who have not been able to get it working, this is the solution, step 2. You have to add the registry key, which IS NOT added when you make the Lanman stuff. I just registered to help those who, like me, spent days on this.

Redirecting

JAM83 · Nov 25, 2024

Bree said:
In 24H2 tighter security restrictions that were previously only enforced in Enterprise and above are now on by default in Pro. Insecure logins are not allowed by default, you now cannot connect to another PC if you have a local account with no password.

There are two ways to connect. The first is to create a Windows Credential for an account with a password on that other PC.

The second is to turn off the restriction on insecure logins.

Enable insecure guest logons in SMB2 and SMB3 for Windows client and Windows Server

This article describes how to enable guest logons policy in SMB2 and SMB3 for Windows client and Windows Server devices using Group Policy and PowerShell.

learn.microsoft.com

This is not true at all. I am able to connect to other PCs with local accounts with no passwords. Not sure how you came up with that, but all of my PCs (3) have local accounts with no passwords, and I am able to connect to all of them.

Wisewiz · Nov 25, 2024

Just want to add my expression of gratitude to those already here. I futzed around for hours and hours after a recent update left my three-PC home network crippled. Thanks especially to Bree and Wolfzz for the great support. I'm up and running again.

Dan

JimSmith62 · Dec 3, 2024

I've had this problem for months and I have FINALLY found the answer in a YT video! https://www.youtube.com/watch?v=d5YArzoZSoThis works

Win11 24H2 Installed, now no network sharing

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