Sometime you are browsing the internet and trying to open any website, your e-mail and any FTP sites , but you see different error codes there. You should be familiar with these error codes. You can solve these problems if you arewell-knownwith the meaning of error codes.Error Codes Meaning* .400This is bad request error, First check you may be typing wrong URL name and server could not understand your request.* .401You are trying to open any unauthorized access site or page. Check your username and password if you are trying to open any webpage.*. 402Payment Required Error*. 403You are trying to open any forbidden page and you are blocked by that domain.*. 404The most common of all..Here you are trying to openthe webpage that was removed or re-named, also check the URL spelling.* .408This is time out error. you should send the request with in time that the server set for you.