Error 400 - Bad Request
	Problem: The address is incorrect. You may not be authorized to access the web page. The page no longer exists.
	Options: Check the address carefully, especially if the address is long. Check all slashes are forward slashes. Web addresses are case sensitive, check that any capitals in your entry are as they are in the original reference.
	Error 401 - Unauthorized
	Problem: You're not on the guest list. Your domain (ISP) is not allowed. Your password is invalid or incorrect.
	Options: If you think you have authorization, try typing your password again. Remember that passwords are case sensitive.
	Error 403 - Forbidden
	Problem: You're not on the guest list. Your domain (ISP) is not allowed. Your password is invalid or incorrect. Your connection may have an incorrect proxy setting.
	Options: If you think you have authorization, try typing your password again. Remember that passwords are case sensitive. Check if your ISP uses a proxy server and what settings you should use.
	Error 404 - Page not found
	Problem: The address is incorrect. The page may have moved. The page no longer exists. The link is incorrect. You are not connected to the internet.
	Options: Connect to the internet. Check the webpage address. Try the homepage (delete everything past the first "/" after the name) and look for links to the page you want. Try using the search engine at the top of this page to find it.
	Error 500: Internal Error
	Problem: There’s something wrong at the Web site itself. As their server is not functioning correctly, it’s unable to provide you with the requested Web page.
	Options: Try again later in the hope that they have noticed the problem and fixed it.
	Error 502: Bad gateway
	Problem: The server from which you tried to access a document needed to obtain that document from another server, and received an error message from that server in the process.
	Options: There’s not much you can do about this apart from trying again later.
	Error 503: Service unavailable
	Problem: This is a “temporarily out of order” sign, and it’s sometimes reported as Gateway timeout. It means either the server that hosts the site is currently not working or is unavailable, your ISP’s server is down, or your own system or company Internet gateway (if you’re on a LAN) is not working.
	Options: Wait a minute and try again. If you get the message for a lengthy period or with every attempt to connect to any site, check that your PC and LAN connections are functioning, and then check with your ISP or the remote site. This may entail a phone call to their tech support line.
	Bad file request
	Problem: You’ve requested a page that contains a form with a feature your browser can’t support.
	Options: Let the Webmaster know the form is unusable.
	Action cancelled
	Problem: A request from your browser has been interrupted or stopped.
	Possible causes: Clicking 'stop' on your browser when loading a page. Your connection is lost or has been broken. The server you are trying to reach has a problem or has crashed. The program or script you are running has a coding 'bug'.
	Connection refused by host
	Problem: Like the Forbidden and Unauthorised messages, this one usually means you’ve tried to access a password-protected site or one that’s restricted to users from particular domains.
	Options: If you have the password, check that you typed it correctly and try again. If it still won’t work, contact the Webmaster.
	Unable to find server or host
	Any errors similar to these probably mean that you are not connected to the internet.
	File contains no data
	Problem: You’ve connected to a server that doesn’t have any Web documents on it.
	Options: Try the URL once more. If you still get the same message, try again later: it may be that you’ve stumbled onto the site just as it’s being updated.
	Host unavailable
	Problem: The site’s server is currently down.
	Options: Try again a few times. If you still can’t get in, the site may be down for maintenance. Try again later
	Unknown Host
	Problem: It could be that the site’s server is down (as with the previous message) or that you have lost your connection.
	Options: Try again by hitting the Reload button. Make sure you’ve typed the URL correctly and that you’re still online.
	Connection refused by the server
	Problem: This usually means you’ve come across an overworked server that can’t handle any more users. This is the message you get if the server hasn’t been set up to display the more informative “Service temporarily overloaded” message.
	Options: Try again. If you still can't get in, be patient and try again later.