DOCUMENT:Q170336 24-JUL-2002 [winnt] TITLE :Network Error (1222): Unable to Browse the Network PRODUCT :Microsoft Windows NT PROD/VER::4.0 OPER/SYS: KEYWORDS:kbnetwork ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Workstation version 4.0 - Microsoft Windows NT Server version 4.0 ------------------------------------------------------------------------------- IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe. SYMPTOMS ======== You are able to access network resources from a command prompt; however, when you try to access network resources from Windows Explorer, you may experience one or more of the following problems: - Double-clicking Network Neighborhood gives the following error: Unable to browse the network. Network error (1222). -or- - Clicking Start, clicking Run, typing , and clicking OK results in the following error: \\ The network is not present or not started. -or- - From File Manager (Winfile.exe), none of the connect drive commands are present. CAUSE ===== The Multiple Provider Router (Mpr.dll) cannot load any network providers from the registry. RESOLUTION ========== WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk. For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. To resolve this issue, follow this procedure: 1. Start Registry Editor (Regedt32.exe) and go to the following key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control \NetworkProvider\Order 2. On the Edit menu, click Add Value. 3. Enter the following value: Value Name: ProviderOrder Data Type: REG_SZ Value: LanmanWorkstation 4. This change should take effect without restarting Windows NT. MORE INFORMATION ================ When Mpr.dll initializes, it reads the above registry key value. If Mpr.dll fails to get this information, it will return WN_NO_NETWORK, which produces the symptoms described above. Additional query words: ====================================================================== Keywords : kbnetwork Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400 Version : :4.0 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2002.