Windows 7 Home Premium laptop does not see iMac

I have a similar concern to the concern below (http://social.answers.microsoft.com/Forums/en-US/w7network/thread/a2a62c23-0aae-4b5a-a646-f089468bc6cc).

My Windows 7 laptop sometimes sees my iMac, but usually does not - very frustrating.  Is there a fix for this????

My Windows 7 Home Premium Edition does not support the Group Policy Editor, so I attempted option #2.  It did not work.

Another note...I attempted creating a new DWORD lmcompatibilitylevel and then tried lncompatibilitylevel.  I thought maybe lmcompatibilitylevel was a typo.  Neither DWORD set to "1" worked.

Thanks, Craig

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Hey willroz,
 
If Group Policy Editor is available for your version of Windows, configure the following setting.

Note: Group policy editor is available only in Professional, Ultimate and Enterprise edition of Windows 7. You will not have the Local Group Policy Editor available in the Windows 7 Starter and Home Premium editions. If Group Policy Editor isn’t supported in your version of Windows, go to Method 2.

Method 1: Via Group Policy


1.  Go to Start, type secpol.msc and press Enter to get editor up.
2.  Locate "Network Security: LAN Manager Authentication Level" in the list and double-click on it.
3.  Change the setting from " NTMLv2 response only" to "Send LM & NTLM - use NTLMv2 session if negotiated".
4.  Network Security: Minimum session security for NTLM SSP Based (including secure RPC) Clients.
5.  Change the setting from "require 128 bit" to "unchecked (No Minimum)".
6.  Click OK.

Method 2: Via Registry.

Important: This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the windows help article below.

1. Go to start, type regedit.exe and press Enter.

2. Locate the following key.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa

3. In the ‘Value’ pane of the Registry Editor, check to see if the following DWORD exists: lmcompatibilitylevel. If it does, perform the following: 
Right-click lmcompatibilitylevel and select ‘Modify’ from the pop-up menu. 

4. Enter a Value data of 1. 

5. Click the ‘OK’ button. 

If the lmcompatibilitylevel DWORD does not exist, create a new DWORD.

Here's how:


        a. From the Registry Editor menu, select EditNew, DWORD (32-bit) Value. 
        b. A new DWORD called "New Value #1" will be created. 
        c. Rename the new DWORD to lmcompatibilitylevel. 
        d. Right-click lmcompatibilitylevel and select ‘Modify’ from the pop-up menu. 
        e. Enter a Value data of 1
        f. Click the ‘OK’ button. 
        g. Close registry editor and restart the computer.

Test and see if this helps.


Regards,

Shinmila H - Microsoft Support 

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Question Info


Last updated March 13, 2018 Views 3,059 Applies to:

Hi,

 

·         Are you able to see the Windows 7 computer from the iMac?

 

 

Step 1:

You may temporarily try to disable the antivirus software and the firewall settings and check if that helps.

Firewall settings:

http://windows.microsoft.com/en-US/windows7/Understanding-Windows-Firewall-settings

http://windows.microsoft.com/en-US/windows7/Firewall-frequently-asked-questions
Disable antivirus software:

http://windows.microsoft.com/en-US/windows7/Disable-antivirus-software

 

Step 2:

Also enable network discovery for the Windows 7 computer and check if that helps.

http://windows.microsoft.com/en-US/windows7/Enable-or-disable-network-discovery

 

Hope this information is helpful.

Amrita M

Microsoft Answers Support Engineer
Visit our
Microsoft Answers Feedback Forum and let us know what you think.

 

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What happened to your initial response?  I tried your suggestions above.  I believe your initial response had some new things to try.  You showed some links that I followed on Jan 5 2011 around 8am EST.  These links are no longer listed in your response above.

Also, I can see my Winddows 7 computer from my iMac. 

Can you please repost your initial response?

Craig

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