Annotation of loncom/html/adm/loginproblems.html, revision 1.10
1.1 www 1: <html>
2: <head>
3: <title>LON-CAPA Login Problems</title>
1.3 www 4: <script>
5: function openwin() {
6: var testwin=window.open('/adm/rat/empty.html','test','menubar=0,width=200,height=100');
7: testwin.document.clear();
8: testwin.document.writeln('PASSED TEST');
9: testwin.document.close();
10: testwin.focus();
11: }
12: </script>
1.1 www 13: </head>
14: <body bgcolor="#FFFFFF">
15: <h1>Login Problems with LON-CAPA</h1>
16: <h2>Which browsers can I use with LON-CAPA?</h2>
17: LON-CAPA is designed to work with the following browsers
18: <ul>
19: <li>Mozilla version 1.0 and higher</li>
1.9 albertel 20: <li>Mozilla Firefox</li>
1.7 www 21: <li>Camino</li>
1.1 www 22: <li>Netscape version 4.7 and higher</li>
1.7 www 23: <li>Safari version 1.1.1 and higher</li>
1.4 www 24: <li>Galeon version 1.2 and higher</li>
1.7 www 25: <li>Internet Explorer version 5.1 and higher (found to be slow on MacOS)</li>
1.1 www 26: </ul>
27: on the following operating systems
28: <ul>
29: <li>Linux</li>
30: <li>UNIX</li>
31: <li>MacOS</li>
1.10 ! albertel 32: <li>Microsoft Windows 98, NT, 2000, ME, XP, and Vista</li>
1.1 www 33: </ul>
34: If you have problems logging in with any browser or any operating system not
35: listed above, please <b>use another browser or computer.</b>
1.3 www 36: <h2>I have accessibility needs</h2>
37: Please use the
38: <a href="/adm/login?interface=textual">alternative text-based login mode</a>.
39: Please let the system administrator know if you have any problems.
40: <h2>I would like to use my Pocket Computer or PDA to access LON-CAPA</h2>
41: While we can make no guarantees that LON-CAPA will work with your particular
42: Pocket Computer or PDA, you might want to try the
1.6 www 43: <a href="/adm/login?interface=textual">alternative text-based login mode</a>.
1.8 www 44: We have had success with a Sharp Zaurus and <a href="http://www.bitstream.com/">ThunderHawk</a> on PocketPCs
1.6 www 45: (e.g., Dell Axim).
1.1 www 46: <h2>I get "Username and/or password could not be authenticated"</h2>
47: <ul>
48: <li>
49: The most common problem here is that the Caps-Lock button is pressed. Usernames
50: and passwords are case sensitive, so it does matter if something is typed with
51: lowercase or with uppercase letters.
52: </li><li>
53: The second most common problems is that users accidentally go to the wrong
54: server. LON-CAPA is running at many universities, colleges, and schools.
55: Especially if you hit upon this page by looking for "LON-CAPA" in Google or
56: some other search engine, you might have hit a server at another place. Please
57: make sure to use the URL provided to you.
58: </li></ul>
1.3 www 59: <h2>I get a list of computers ...</h2>
60: This means that the server you attempted to login to is currently not
61: available. For example, it might be undergoing maintenance. Please click on
62: any of the other server, giving preference to the ones that say "preferred."
1.5 www 63: <h2>I get "Information needed to verify your login information is missing, inaccessible or expired"</h2>
64: LON-CAPA does internal encryption of password information submitted from the
65: login screen, but only keeps the decryption information for a day. Simply pull
66: up the login screen again.
67: If that does not solve the problem, please wait for 20 minutes, reload
1.1 www 68: the login page, and try again. If after 20 minutes LON-CAPA still gives you
69: the same message, please email the Server Administrator listed on the login
70: page. The Server Administrator can verify your situation and re-enable logins.
1.3 www 71: <h2>I hit "Log In," but nothing happens, or I get error messages and
72: warnings</h2>
73: <ul>
74: <li>The most common problem is that your browser is not one of the browsers
75: listed above.</li>
76: <li>You might have modified the preferences in your browser. In particular, the
77: following preferences can be a problem:
78: <ul>
79: <li>Scripting languages, in particular JavaScript, is disabled.
80: <i>Test: as you <a href="javascript:alert('PASSED TEST');">click here</a>,
81: a small window should appear. If no window appears, scripting is disabled.</i>
82: </li>
83: <li>The security settings are cranked up to a higher level. In particular, this
84: might prevent unencrypted submission of passwords (LON-CAPA actually does its
85: own encryption), or cross-server submission of forms.
86: </ul></li>
87: <li>If all else fails, please <b>try from another computer.</b></li>
88: </ul>
1.1 www 89: <h2>After logging in, I get the message "Welcome," but then nothing happens
90: </h2>
1.6 www 91: Actually, something <i>will</i> happen if you wait around a little bit:
92: after trying
93: to launch its Remote Control for a while, LON-CAPA will default into its
94: text-based interface mode. That mode
95: is just fine for most operations, but has certain limits.
1.1 www 96: <ul>
97: <li>The most common problem is that your browser is not one of the browsers
98: listed above.</li>
1.3 www 99: <li>If you have a supported browser, it might be hung.
100: <b>Please completely quit
101: your browser, and start it again.</b></li>
1.2 www 102: <li>You might have installed a filter against so-called "pop-up ads" (those
1.1 www 103: obnoxious windows that come up into your face trying to sell you something
1.6 www 104: while you are surfing).
105:
106: We recommend to disable the filter for your school's domain, for example
1.3 www 107: "<tt>xyzu.edu</tt>."
108: <i>Test: as you <a href="javascript:openwin();">click here</a>,
109: a small window should appear.
110: If no window appears there, but
111: <a href="javascript:alert('THIS COMES UP');">this window</a> does come up,
112: pop-up filters are active.</i></li>
1.2 www 113: <li>You might be getting your internet access from a free service provider
114: which adds banner ads to your pages. These ads conflict with LON-CAPA, you
115: will need to use another provider.</li>
1.3 www 116: <li>If you do not want to re-adjust the preferences of your browser, you might
117: want to use the
1.6 www 118: <a href="/adm/login?interface=textual">text-based login mode</a>.
1.1 www 119: <li>If all else fails, please <b>try from another computer.</b></li>
120: </ul>
121: </body>
122: </html>
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