Having problems with your Toshiba Satellite A100-S8111TD Notebook ?

What do you do to fix when web address comes up

\015 What do you do to fix computer when web address comes up Http error 400, the request was badly formed?\015

Answers :

HTTP Error 400 Bad request
\015\012\011\011\011 \015\012\011\011\011 Introduction
\015\012\011\011\011 \015\012\011\011\011\011The Web server (running the Web site) thinks that the data\015\012\011\011\011\011 stream sent by the client (e.g. your Web browser or our CheckUpDown robot) was\015\012\011\011\011\011 'malformed' i.e. did not respect the HTTP protocol completely. So the Web\015\012\011\011\011\011 server was unable to understand the request and process it.
\015\012\011\011\011 400 errors in the HTTP cycle
\015\012\011\011\011 \015\012\011\011\011\011Any client (e.g. your Web browser or our CheckUpDown robot) goes\015\012\011\011\011\011 through the following cycle:
  • Obtain an IP address from the IP name of the site (the site\015\012\011\011\011\011\011 URL without the leading 'http://'). This lookup (conversion of IP name to IP\015\012\011\011\011\011\011 address) is provided by domain name servers (DNSs).
  • \015\012
  • Open an IP socket connection to that IP address.
  • \015\012
  • Write an HTTP data stream through that socket.
  • \015\012
  • Receive an HTTP data stream back from the Web server in\015\012\011\011\011\011\011 response. This data stream contains status codes whose values are determined by\015\012\011\011\011\011\011 the HTTP protocol. Parse this data stream for status codes and other useful\015\012\011\011\011\011\011 information.
\015\012\011\011\011\011This error occurs in the final step above when the client\015\012\011\011\011\011 receives an HTTP status code it recognises as '400'.
\015\012\011\011\011 Fixing 400 errors - general
\015\012\011\011\011 \015\012\011\011\011\011There is a low-level problem in the client or the Web server or\015\012\011\011\011\011 both. 95% of the time this is because of a problem on the client system e.g.\015\012\011\011\011\011 there is something unstable on your PC running the Web browser.
  • Is your PC secure ?. If your PC is not well-protected, then\015\012\011\011\011\011\011 all kinds of problems may occur - including HTTP 400 errors. If you run\015\012\011\011\011\011\011 Windows, stay uptodate with automatic security updates from Microsoft and\015\012\011\011\011\011\011 possibly consider getting a registry cleaner. Always have good anti-virus and\015\012\011\011\011\011\011 spyware protection. Invest in a hardware firewall if you can afford one. Be\015\012\011\011\011\011\011 sensible surfing the Web - block pop-up windows and avoid bad sites. If your PC\015\012\011\011\011\011\011 security is compromised, then Web traffic out from your PC to the Internet may\015\012\011\011\011\011\011 be secretly corrupted by malware (spyware, viruses, etc.) running on your PC.\015\012\011\011\011\011\011 This can be difficult for you to detect.
  • \015\012
  • Have you installed web-based software ?. Some social\015\012\011\011\011\011\011 networking and games sites ask you to download and run software on your PC so\015\012\011\011\011\011\011 you can interact with other people on the Internet directly (without using your\015\012\011\011\011\011\011 Web browser). This software, if badly written or even criminal, can corrupt all\015\012\011\011\011\011\011 HTTP traffic from your PC. Getting rid of that defective software can be\015\012\011\011\011\011\011 difficult. At worst you may have to reinstall your operating system again\015\012\011\011\011\011\011 (possibly losing all your personal data on your PC if you do not have\015\012\011\011\011\011\011 backup).
  • \015\012
  • How stable is your Internet connection ?. If you have\015\012\011\011\011\011\011 recently changed ISPs or your ISP is very slow or unreliable, then Web traffic\015\012\011\011\011\011\011 from your PC out to any site on the Internet may be corrupt. Your ISP may have\015\012\011\011\011\011\011 reconfigured some of their setup (e.g. introduced new proxy servers or\015\012\011\011\011\011\011 cacheing) that is causing some instability. A possible sign of problems here is\015\012\011\011\011\011\011 if you can not easily browse the Web site of your ISP. You can also try to\015\012\011\011\011\011\011 check that the Web site you are actually visiting is the one you think you are\015\012\011\011\011\011\011 visiting. For example, you may have a DNS problem. You can check this using a\015\012\011\011\011\011\011 ‘ping’ test. A DNS problem may be caused by your ISP or may be on\015\012\011\011\011\011\011 your own system e.g. in a ‘hosts’ file.
  • \015\012
  • Do you get the error on more than one Web site ?. If you get\015\012\011\011\011\011\011 the error on lots of Web sites, this indicates the problem is on your PC, not\015\012\011\011\011\011\011 on those sites.
  • \015\012
  • Do you get the error using more than one browser ?. If you\015\012\011\011\011\011\011 have two or more Web browsers installed on your PC and the behaviour is not the\015\012\011\011\011\011\011 same (one Web browser gives an HTTP 400 error visiting a site, another Web\015\012\011\011\011\011\011 browser does not give the 400 error visiting the same site), then one of your\015\012\011\011\011\011\011 browsers may be defective. Try to find an upgrade or security fix for the\015\012\011\011\011\011\011 problem browser. If you recently changed some configuration options in the\015\012\011\011\011\011\011 problem browser, try reversing the change to see if that helps.
  • \015\012
  • Do you get the error on big Web sites ?. If you get the\015\012\011\011\011\011\011 problem on quite a small site, visit some of the bigger sites like Amazon,\015\012\011\011\011\011\011 Ebay, Google, Microsoft and Yahoo. If you get the problem only on small sites,\015\012\011\011\011\011\011 it indicates a problem with only those sites or the traffic from your PC to\015\012\011\011\011\011\011 those sites.
  • \015\012
  • Do you get the error on simple URLs ?. If you get a problem\015\012\011\011\011\011\011 with a long complicated URL (such as\015\012\011\011\011\011\011 http://www.xxx.com?PHPrequest=643&value=dres&cookies=No) but not with a\015\012\011\011\011\011\011 shorter simpler URL for the same site (such as http://www.xxx.com), this can\015\012\011\011\011\011\011 indicate a problem with the Web server on the site you are trying to visit.\015\012\011\011\011\011\011 This is not conclusive evidence, but is a good starting point. Contact the\015\012\011\011\011\011\011 owners of the Web site and describe the problem to them. You may find for\015\012\011\011\011\011\011 example the problem occurs with POST methods (you are both submitting data to\015\012\011\011\011\011\011 the Web site and retrieving data from the Web site), but not with GET methods\015\012\011\011\011\011\011 (you are only retrieving data from the Web site).
  • \015\012
  • Do you have a cache problem ?. Try clearing your cookies,\015\012\011\011\011\011\011 browser cache and browsing history in your Web browser. Disable or remove any\015\012\011\011\011\011\011 third-party cacheing or ‘web accelerator’ software you installed.\015\012\011\011\011\011\011 Then try rebooting your PC and any firewall/router you use to connect to the\015\012\011\011\011\011\011 Internet. That may not fix the error, but at least may eliminate any problem\015\012\011\011\011\011\011 due to old settings on your PC.
  • \015\012
  • What has changed since you started getting the HTTP 400\015\012\011\011\011\011\011 problem ?. In general terms, think about what has changed on your PC since you\015\012\011\011\011\011\011 first started seeing the problem. This may cover any of the items mentioned\015\012\011\011\011\011\011 above. Work backwards and see if undoing those changes makes any\015\012\011\011\011\011\011 difference.
\015\012\011\011\011\011So there are a lot of things that you can check on your own PC.\015\012\011\011\011\011 If you contact the owners of the Web site giving you the HTTP 400 error and\015\012\011\011\011\011 they say "We have lots of other users who do not have your problem - so\015\012\011\011\011\011 there must be something wrong with your PC", they are right most of the\015\012\011\011\011\011 time - and you can not expect them to be interested in fixing your own PC\015\012\011\011\011\011 problems. However if they know there is a problem with their Web site, they\015\012\011\011\011\011 should hopefully tell you so and tell you when they plan to fix the\015\012\011\011\011\011 problem.
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