These are the common browsers that you will see and how you can fix them.
1. 400
1. 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.
2. 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.
3. 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. 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.
4. 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.
5. 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. 6. 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.
7. 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.
8. 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.
9. 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.
10. 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.
11. 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.
12. 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.
13. 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.
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. 15. 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.
16.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.
17. 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.
18. 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.
19. 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.
20. 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.
21. 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.
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