Login Problems with LON-CAPA
Which browsers can I use with LON-CAPA?
LON-CAPA is designed to work with the following browsers
- Mozilla version 1.0 and higher
- Netscape version 4.7 and higher
- Internet Explorer version 5.0 and higher
on the following operating systems
If you have problems logging in with any browser or any operating system not
listed above, please use another browser or computer.
I get "Username and/or password could not be authenticated"
-
The most common problem here is that the Caps-Lock button is pressed. Usernames
and passwords are case sensitive, so it does matter if something is typed with
lowercase or with uppercase letters.
-
The second most common problems is that users accidentally go to the wrong
server. LON-CAPA is running at many universities, colleges, and schools.
Especially if you hit upon this page by looking for "LON-CAPA" in Google or
some other search engine, you might have hit a server at another place. Please
make sure to use the URL provided to you.
I get "Login token missing, inaccessible or expired"
This is a very rare problem. If it occurs, please wait for 20 minutes, reload
the login page, and try again. If after 20 minutes LON-CAPA still gives you
the same message, please email the Server Administrator listed on the login
page. The Server Administrator can verify your situation and re-enable logins.
After logging in, I get the message "Welcome," but then nothing happens
- The most common problem is that your browser is not one of the browsers
listed above.
- If you have a supported browser, it might be hung. Please completely quit
your browser, and start it again.
- You might have installed a filter against so-called "pop-up adds" (those
obnoxious windows that come up into your face trying to sell you something
while you are surfing). These filters will prevent LON-CAPA from running
properly. Please disable the filter for your school's domain, for example
"xyzu.edu."
- If all else fails, please try from another computer.
I hit "Log In," but nothing happens, or I get error messages and
warnings
- The most common problem is that your browser is not one of the browsers
listed above.
- You might have modified the preferences in your browser. In particular, the
following preferences can be a problem:
- Scripting languages, in particular JavaScript, is disabled.
- The security settings are cranked up to a higher level. In particular, this
might prevent unencrypted submission of passwords (LON-CAPA actually does its
own encryption), or cross-server submission of forms.
- If all else fails, please try from another computer.