| Error message | What it means | What you can do |
|---|
| 400 - Bad request | You entered a URL
that is not accepted as correct. Possibly the server being contacted
doesn't recognize the document you are asking for or it may no longer
exist. It is also possible that it is correct but you aren't authorized
to access it. | Check the URL to see if it's
correctly spelled and that every letter is in the right (upper- or
lower-) case. Check colons, numbers of slashes, and tildes. |
| 401 - Unauthorized | The
site being accessed is protected and you either entered the incorrect
password or the host does not want users coming from your domain to
enter. Some sites will only allow specific domains to access the site.
For example, some U.S. government sites (with the .gov top-level domain
name) will only permit users coming from .gov or .edu (educational
sites) to gain access. Or some educational sites only allow access from
other educational sites. | If you are sure you have
access to the site, try typing the password again. If you don't have a
password or your domain does not have access to the site, you won't be
able to access it. |
| 403 - Forbidden | You are not permitted to access this document. It is either password-protected or the host does not want your domain to enter. | See above. |
| 404 - Not found | The
host server can't find the HTML document at the URL you've entered.
Either you have mistyped the URL, the document no longer exists, or
you've been given the wrong URL. | If your URL ends
in ".htm", try ".html" (and vice versa). To find out whether the site
hosting the document is still active, delete everything after the last
slash in the URL. If this doesn't work, try deleting the slash and
adding .htm or .html to the end. If the site is still running, try and
find the page from another location on the site that you can reach. |
| 550 - xxxxxxxxx is not a known user | Using
e-mail, you sent a note to an e-mail address that isn't recognized at
the mail server you've specified. The e-mail note got all the way to
the mail server (so that part's right), but you may have entered the
user part of the e-mail address incorrectly or the user may no longer
have an account on that server. | Make sure you
entered the correct e-mail user name. If you suspect it's an old
address or was mistyped in a note sent to you, try looking up a new
address using the person's name. Try e-mail address finding tools. |
| Bad file request | The form you're trying to access is not supported by your browser or there is an error in the form. | Try
using a different browser. If the problem persists or another browser
is not available, send an e-mail note to the site's Webmaster. |
| Cannot add form submission result to bookmark list | This
error message occurs when you've submitted a search request and then
try to save the result as a bookmark. Even though it may look like a
valid address, the resulting page does not have a URL that can be reused
so it can't be added to your bookmark list. | Use the Save As
command to save the page to your hard drive. Then you can open the
saved HTML page in your browser and add that to your bookmark list. |
| Connection refused by host | You're
not permitted to access this document either because it's
password-protected or the host doesn't permit your domain to enter. | If
you have access to the site and you know the password, try again,
making sure you type it correctly and with the correct case. |
| Failed DNS lookup | The URL
you requested could not be translated into a valid Internet address by
the domain name system. This is either a result of a mistake in the
system or you could have mistakenly entered an incorrect URL. | Mistakes in DNS
lookups are a common occurrence. Simply clicking the Reload button may
correct the error. If the error persists, you may have entered an
incorrect host name. Try typing the URL again. |
| File contains no data | The
site you accessed doesn't contain any Web pages on it. It's possible
that you're trying to access the site while the page is being uploaded. | Try
waiting a minute and clicking on the Reload button. Make sure that the
URL is typed in correctly. If the problem persists, try again later. |
| Helper application not found | You're
trying to load a file of a type that your browser doesn't recognize.
Most browsers can be enabled to view or load file types that they don't
otherwise recognize. These files can be sound files, movie clips,
graphics, ZIP archive files, or any other type of file you are trying to
download. | The dialog box that carries this
message will tell you the file type that is missing. You can then
follow your browser's instructions for assigning a viewer for each file
format you wish to view online. It's often better to have certain file
formats not assigned to helper applications for Internet browsers. When
files are not assigned to helper applications, the dialog box you
receive has a "Save to Disk" option. This can often be useful when you
want to download files, such as ZIP archive files, to save them instead
of extracting them right away. |
| Host unavailable | The server computer that hosts this site could not be reached. The server may be offline or down for maintenance. | Try clicking on the Reload button. If it still doesn't work, try again later. |
| Host unknown | The
server you're trying to reach is not connected, or you have lost your
own connection. You may have also entered the URL incorrectly. | Click
the Reload button and try again. Occasionally, packets don't arrive on
the Internet and a second try will work. Next, make sure you are
connected to the Internet. If you have lost your connection, simply
reconnect and try the URL again. If you still receive the error, check
the URL for typos and case-sensitivity. |
| Network connection was refused by the server | Some
servers have limits on the number of people or request they can handle
at a time. If you get this message, the server is probably too busy to
handle one more user. When the server doesn't create its own message to
handle this error, this generic message is displayed instead. | Try clicking the Reload button until you connect. Or try again later. |
| NNTP server error | This error occurs when you are trying to log on to a Usenet newsgroup. An NNTP
server is part of your Internet service provider's software, so if this
error occurs the software may be malfunctioning or the newsgroup does
not exist. | Make sure that the URL is typed
correctly. If you still receive the error, wait a while and try again.
If the problem still persists, contact your access provider and make
them aware of the problem. |
| Permission denied | This
error occurs when you are connected with an FTP site and you are either
uploading or downloading. Sometimes the site administrator doesn't want
you to upload to the site, download a certain file, or access a certain
directory. The site may also be too busy. | Check
that you are using the correct procedure to upload or download the file.
Then keep trying until you succeed. If you still receive the error and
know that you're able to upload or download to that site, contact the
Webmaster by phone or e-mail. |
| Too many connections--try again later | The limit to the number of people who can use the site at one time has been exceeded. You'll have to wait your turn. | Keep clicking the Reload button until you connect or try again later when there is likely to be less traffic. |
| Too many users | To
avoid slow uploading and downloading rates, site administrators set a
maximum number of users that can access the site at one time. Your
request is one too many. | Keep trying until you
connect or try again later when there is less Internet traffic. Check to
see whether the site has mirrors, and try one of those. |
| Unable to locate host | The server is either down for maintenance or you may have lost your connection. | Click
the Reload button; sometimes there is an intermittent problem on the
Internet. Then make sure you're connected to the Internet. If you have
lost your connection, simply reconnect and try the URL again. If you
still receive the error, check the URL for typos and case-sensitivity. |
| Unable to locate the server | The server indicated in the URL you typed or clicked from either no longer exists or was entered incorrectly. | Check
the URL to see if everything is correct. Make sure that everything is
correctly spelled and in the correct case (some servers are
case-sensitive). You can also check with the source of the URL to
verify that it is correct. |
| Viewer not found | Your
browser doesn't recognize files of this type. Most browsers can be
extended to be able to view or load file types that are not otherwise
recognized by browsers, such as movie or sound files. | When
this dialog box appears, search for a helper application that will open
files of this format. Then follow your browser's instructions for
assigning this viewer to open files of that format online. |
| You can't log on as an anonymous user | This
is another FTP error message. Most browsers submit "anonymous" as your
user ID and your email address as your password. The FTP site you are
connecting to may not allow "anonymous" access. This error will also
occur when the FTP server is currently at its limit of "anonymous"
users. Another possibility is that your browser doesn't support
anonymous FTP access (for example, America Online's browser). | Keep
trying to access the FTP site until you succeed. Sometimes the FTP
server is too busy. However, if you don't have a browser that allows
anonymous FTP access or the site is password-protected, enter your user
ID and password manually using FTP software such as WS_FTP or CuteFTP. |
0 comments:
Post a Comment