عموما خطای عدم دسترسی به فایل های اشتراکی در شبکه داخلی ( تصویر زیر ) در ویندوزهای سرویس پک 2 در شبکه ورک گروپ که قصد دسترسی به فایل Share داریم، نمایش داده می شود:

یا پیغام خطای زیر در سایر ویندوزها:

Logon failure: user account restriction. Possible reasons are blank passwords not allowed, logon hour restrictions, or a policy restriction has been enforced.

OR
You might not have permission to use this network resource
راه حل رفع مشکل shared folders on network are inaccessible به صورت زیر می باشد:


1 - Open Local Group Policy Editor by typing gpedit.msc in Start Search box and hit Enter OR Click Start, click Run, type gpedit.msc, and then click OK



2 - Navigate to Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options branch.


3 - Locate and double click on Accounts: Limit local account use of blank passwords to console logon only option.


4 - Select the radio button for Disabled to allow user account with blank (or no password) for remote login.


5 - After you have selected Security options you just need to go on the right panel and under Network Access find “Sharing and security Models for local Accounts”. Select the radio button for Classic - Local Users authenticate as themselves.


6 - Click Start, click Run, type regedit, and then click OK.


7 - Locate and then double-click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Lsa


8 - On the right side, double-click restrictanonymous.


9 - Make sure that the value in the Value data box is set to 0, and then click OK.


10 - Close Registry Editor.


11 - Restart the computer.