Common Internet Error Codes
Do you ever surf the web and wonder what all those error messages mean? Here is a table to answer most of your questions. Simple, straightforward and easy to understand.
400
401
403
404
408
500
501
502
503
Bad File Request Usually means the syntax used in the URL is incorrect. Possibilities:. uppercase letter should be lowercase letter, incorrect punctuation marks.
Unauthorized Server is looking for some encryption key from the client and is not getting it. Also, wrong password may have been entered. Try it again, paying close attention to case sensitivity
Forbidden/Access Denied Similar to 401, special permission needed to access the site -- a password and/or user name if it is a registration issue. Other times you may not have the proper permissions set up on the server.
File Not Found Server cannot find the file you requested. File has either been moved or deleted, or you entered the wrong URL or document name. Look at the URL. If a word looks misspelled, then correct it and try it again. If that doesn't work backtrack by deleting information between each backslash, until you come to a page on that site that isn't a 404. From there you may be able to find the page you're looking for.
Request Time-out Client stopped the request before the server finished retrieving it. A user will either hit the stop button, close the browser, or click on a link before the page loads. Usually occurs when servers are slow or file sizes are large.
Internal Error Couldn't retrieve the HTML document because of server-configuration problems. Contact site administrator
Not Implemented Web server doesn't support a requested feature.
Service Temporarily Overloaded Server congestion; too many connections; high traffic. Keep trying until the page loads.
Service Unavailable Server busy, site may have moved ,or you lost your dial-up Internet connection.
Bad File Request
Failed DNS Lookup
Host Unavailable
Unable to Locate Host
Browser may not support the form or other coding you're trying to access.
The Domain Name Server can't translate your domain request into a valid Internet address. Server may be busy or down, or incorrect URL was entered.
Host server down. Hit reload or go to the site later.
Host server is down, Internet connection is lost, or URL typed incorrectly
