192 lines
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HTML
192 lines
12 KiB
HTML
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<title>Troubleshoot the logon server</title>
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<a name="logon_trouble"></a>
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<h2 id="logon_trouble">Troubleshoot the logon server</h2>
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<p><span class="bold">Cannot find the Logon Server?</span></p>
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<p>Most likely, the PC message you see are similar to one of the
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following: </p>
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<ul>
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<li>No domain server was available to validate your password.</li>
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<li>The system could not log you on now because the domain X is not available.</li></ul>
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<p>This can occur for a number of reasons: </p>
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<ul>
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<li>The client cannot resolve to the Logon Server. This is the most common
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reason and there can be a variety of causes, depending how the network is
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configured. The client PC must be able to get the IP address of the Logon
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Server based on the domain name. If the client and Logon Server are located
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on different TCP/IP subnets, then typically broadcast queries are not sent
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across. There are three solution strategies:
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<ol type="1">
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<li>It may just work using the domain discovery support of the
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Microsoft Browsing protocol/support . The iSeries Browsing support is discussed
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in a previous section, but the basic idea is that if at least one browser
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server for the domain exists in the subnet that the PC will log on from, and
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that LMB has knowledge of the DMB (Domain Master Browser), then the client
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can ask it for the name of the Logon Server, after which normal name resolution
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can proceed (DNS, etc.). However, there is not always an LMB available to
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service these requests, and in that case, one of the following backup solutions
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should be put in place.</li>
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<li>WINS. Windows Internet Name Service is the general solution and recommended
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for complex TCP/IP networks because computers AND the services they render
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are matched with IP. It requires at least one WINS server running on a computer
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with that capability somewhere on the network. Then, each computer needing
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the service should be configured with the IP address of the WINS server.
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This configuration is not explained here.</li>
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<li>Static LMHOSTS configuration file on the PC. Host lines can be appended
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with #PRE and #DOM:domain directives to preload domain controllers into the
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name cache. See the sample files shipped with Windows for more information.
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Note that LMHOSTS files can include files on servers so that this solution
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can still be centrally administered.
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<a name="wq99"></a>
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<div class="notetitle" id="wq99">Note:</div>
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<div class="notebody"> The Logon
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support provided by iSeries NetServer™ is for clients in the same TCP/IP network segment
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as the server. If your client is in a different segment or subnet, then these
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resolution strategies are not guaranteed to work. However, a trick that often
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works for Windows 2000 or Windows XP clients is to change the workgroup of
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the client machine to one that is <span class="bold">different</span> than the
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domain name assigned to iSeries NetServer.</div></li></ol></li>
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<li>iSeries NetServer is not started or it didn't start as a Logon Server for the domain
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in question. Check that it is configured as a Logon Server and that there
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are no conflict messages in QSYSOPR. If you see a CPIB687, read the detailed
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description for more information on the exact nature of the conflict.</li></ul>
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<p><span class="bold">User name could not be found</span></p>
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<p>This message normally indicates that the user attempting to log on does
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not have a user profile on the iSeries Logon Server. A guest user may not sign
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on to an iSeries domain. In extreme cases where the Logon Server is very busy
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or slow, the user may not be making it into iSeries NetServer's cache quick enough to
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respond. If this is the case, attempting the logon again should succeed.</p>
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<p><span class="bold">Password incorrect</span></p>
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<p>You are likely to see the following messages when attempting to log on
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in this situation: </p>
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<ul>
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<li>The domain password you supplied is incorrect or access to the Logon Server
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has been denied.</li>
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<li>The Logon attempt was unsuccessful. Select Help for possible causes and
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suggested actions.</li></ul>
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<p>Here are the possible causes for these messages and resolutions:</p>
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<ul>
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<li>The password you sign on to the domain with does not match the password
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in your iSeries user profile. Use your iSeries password and try again.</li>
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<li> The password in your iSeries profile has expired. Unfortunately, you cannot
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change your iSeries password through Windows, so this must be directly done to
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your profile.</li>
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<li>Your iSeries user profile is disabled. The administrator must enable it.</li>
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<li>You are disabled for iSeries NetServer access. The iSeries NetServer administrator can check
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this condition and reenable you from iSeries Navigator.</li>
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<li>Although you are typing the correct password, Windows 98 is
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using an old cached password. The boot drive on the client PC needs to be
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scanned for a user.pwl file and then remove this file.</li>
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<li> For Windows 2000 and Windows XP it is possible that the wrong
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machine is being resolved to. Try prefacing the user name with the domain
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name in the logon prompt like this: domain\user, where user is the username
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and domain is the domain name.</li></ul>
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<p>For Windows 2000 and Windows XP your password also has to match
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the password stored in the local profile if you have a local profile. If
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these do not match, then you will see a message like, The system could not
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log you on. Your network account and password are correct, but your local
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account password is out of sync. Contact your administrator.</p>
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<p><span class="bold">Cannot find the iSeries NetServer domain through My Network
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Places. </span></p>
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<p>You have configured iSeries NetServer as a Logon Server for domain X, but X does not
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show up in the Microsoft Windows Network of domains. Some possibilities are:
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</p>
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<ul>
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<li>iSeries NetServer failed to come up as the DMB because of a conflict with another
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computer. Check for message CPIB687 (RC=2) in QSYSOPR.</li>
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<li>iSeries NetServer is not configured for WINS if WINS is in use.</li>
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<li>The client PC is not properly configured for WINS.</li>
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<li>There is no Browser in the local subnet of the PC that is a member of
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domain X.</li></ul>
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<p><span class="bold">Can log on but do not see my home drive mapped
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for Windows 2000 or Windows XP clients even though the share name exists </span></p>
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<p> The typical problem here is that although the share was created successfully
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from the client, the path name does not actually exist on the server. When
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you create a user profile on the iSeries, a default home directory path is put
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in the profile (/home/user), however, the actual user directory in home is
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not created automatically. You need to do this manually. For example: ===>
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CRTDIR '/home/USER1'</p>
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<p><span class="bold">I want to use a roaming profile from Windows
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2000 or Windows XP, but the option to change it from 'Local' to 'Roaming'
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is disabled</span></p>
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<p>Remember, that you must be logged onto the target domain with an administrating
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profile (not the profile you want to change to roaming) in order for the option
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to be available. In V5R1, iSeries NetServer is able to map longer Windows user names
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to truncated iSeries profile names. So, you can do the following: </p>
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<ol type="1">
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<li>Create the user profile ADMINISTRA on the iSeries</li>
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<li>Give ADMINISTRA a password that matches the password for Administrator
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on the client</li>
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<li>Now log onto the iSeries domain with the Administrator profile.</li>
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<li>Open Control Panel, and then open System.</li>
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<li>Click on the <span class="bold">User Profiles</span> tab and make the appropriate
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changes</li></ol>
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<p><span class="bold">My profile is listed as 'Roaming', but changes to my settings
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(or desktop, etc.) do not get saved </span></p>
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<p> The settings get saved to the locally cached copy of your profile, but
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they are not being updated on the server. This is readily apparent if you
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try to log on from a different workstation and you don't see the updates.
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This problem can occur when the Windows client cannot access the user profile
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directory where the user profile is to be stored. The following are some
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things to check: </p>
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<ul>
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<li>Make sure the appropriate access rights are set on each part of the path
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on the Logon Server.</li>
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<li>Make sure the path is spelled correctly if it is being specified in the
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User Profile settings on the workstation.</li>
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<li>Also check that unsupported environment variables are not being used.
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Some environment variables are not active/usable until after logon. For
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example, if you specify %logonserver%\profiles\%username% as the Profile path
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in User Manager on a Win NT workstation with a service pack less than 3, then
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the client will be unable to resolve the %logonserver% environment variable.
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Try using \\servername\profiles\username instead.</li>
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<li>It's always a good idea to start with a locally cached profile that is
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copied to the Logon Server.</li></ul>
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<p><span class="bold">Locally stored profile is newer than that on the server</span></p>
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<p> This dialog box occurs when you log on and asks you if you want to use
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your local copy instead. Normally, this is a valid message that you can respond
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Yes to, so that network traffic is reduced, or this message is received repeatedly
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after just logging off from the same workstation. Looking at the time stamps
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on the two profiles, the remote one is 2 seconds older (for example) than
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the locally cached one which indicates that Windows did a final update to
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the local profile after it copied it out to the Logon Server. Ensure that
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the client's time is synched with the server's time.</p>
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<p><span class="bold">Incorrect authentication method used</span></p>
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<p>The following message is generally received when a user attempts to log
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in using a different authentication method than what the server is currently
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configured to use.</p>
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<p><tt class="xph">There are currently no logon servers available to service the logon
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request.</tt></p>
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<p>iSeries NetServer cannot be a Logon Server and have Kerberos authentication enabled
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as well. This message is typically received when a user attempts to sign onto
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an iSeries server using a traditional password, when the iSeries NetServer has Kerberos
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authentication enabled.</p>
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<p>Refer to <a href="rzahlkrbv5auth.htm#krbv5auth">iSeries NetServer support for Kerberos v5 authentication</a> for information on how to
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enable Kerberos v5 authentication and traditional password support.</p>
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