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did not respect the HTTP protocol completely. If your PC security is compromised, then Web traffic out from your PC to the Internet may be secretly corrupted by malware (spyware, viruses, etc.) running on your PC. Should indoor ripened tomatoes be used for sauce? Since the requested URL had a HTTP: Uniform Resource Identifier header field with more than 2 characters, the request was blocked. have a peek here

What does an 'ü' mean? String xml = ""; byte[] data = System.Text.Encoding.UTF8.GetBytes(xml); HttpClient.post(url, data, "text/xml") Then I call the POST function: public static String post(String url, byte[] data, String contentType){ String body = ""; body Finally, use the error message in the browser, the network trace data, and the httperr.log data to pinpoint the failure reason as per KB820729. If you have two or more Web browsers installed on your PC and the behaviour is not the same (one Web browser gives an HTTP 400 error visiting a site, another

C# Webclient 400 Bad Request

More Information Following are links to useful articles for troubleshooting some known HTTP 400 scenarios. I haven't known about the max size either until I saw your question. Our really simple guide to web hosting (getting your web site and email addresses on the Internet using your own domain name). How rich can one single time travelling person actually become?

  1. If you get the problem only on small sites, it indicates a problem with only those sites or the traffic from your PC to those sites.
  2. Solution 1 Accept Solution Reject Solution You can either set the maximum size of your data which can be received: http://stackoverflow.com/questions/5236132/wcf-error-400-bad-request-when-post-some-data[^] Or you can change the transfer method: http://stackoverflow.com/questions/2456301/wcf-the-remote-server-returned-an-error-400-bad-request[^] Maybe this (WCF Service
  3. If you are using a REST API, you should maybe be using PUT?
  4. See more: C# XML WCF Hello all, Im trying to make a web service which accepts xml,writes to the db and then returns a message.
  5. Browse other questions tagged c# post httpwebrequest http-post httpwebresponse or ask your own question.
  6. Do you get the error using more than one browser ?.
  7. How to increase the population growth of the human race What are the canonical white spaces?
  8. share|improve this answer answered Jul 22 '12 at 6:54 RonyK 101 add a comment| You must log in to answer this question.
  9. Also you don't seem to be using the credentials to log in - you need to use the Credentials property of the HttpWebRequest object to send the username and password.
  10. Finding a file starting with '-' dash spectral norm of block-wise sums of matrices Did Donald Trump call Alicia Machado "Miss Piggy" and "Miss Housekeeping"?

When answering a question please: Read the question carefully. General FAQ Ask a Question Bugs and Suggestions Article Help Forum Site Map Advertise with us About our Advertising Employment Opportunities About Us Ask a Question All Questions All Unanswered FAQ Board index The team • Delete all board cookies • All times are UTC - 7 hours [ DST ] Powered by phpBB Forum Software © phpBB Group Protected by Anti-Spam Protocolerror It is possible that HTTP.sys can be configured to allow the request (although doing so may lower the security level of your IIS server), so check KB820129 to verify.

asked 4 years ago viewed 3486 times active 4 years ago Related 5CodeChirp - Twitter like post-aggregator and stalker webapplication4ExchangeLinq: LINQ Query Provider for Stack Exchange API v2.01Bad format returned by The Remote Server Returned An Error 400 Bad Request Httpwebrequest Join them; it only takes a minute: Sign up C# HttpWebRequest / Response gives 400 Bad Request. Sample Scenario Following is an example of an HTTP 400 scenario, where a client sends a bad request to IIS and the server sends back an HTTP 400 – Bad Contact the owners of the Web site and describe the problem to them.

This may cover any of the items mentioned above. Webclient Post share|improve this answer answered Jan 10 '13 at 16:57 YvesR 2,74731844 add a comment| up vote 0 down vote 400 Bad request Error will cause due to authentication entries has incorrect. What to tell to a rejected candidate? Some social networking and games sites ask you to download and run software on your PC so you can interact with other people on the Internet directly (without using your Web

The Remote Server Returned An Error 400 Bad Request Httpwebrequest

The Woz Monitor How to substitute expression globally with bash bracket substitution syntax? Not always, but usually, that is the right thing to do.. C# Webclient 400 Bad Request But also, note that a 400 request usually denotes the server not understanding your request. The Remote Server Returned An Error 400 Bad Request At System Net Httpwebrequest Getresponse A bad payload is the likely culprit, especially since you seem to have incorrect JSON. –yamen Apr 12 '12 at 20:43 add a comment| 3 Answers 3 active oldest votes up

What am i missing? http://gatoisland.com/bad-request/bad-request-error-400.php Does your ASPX definitely accept POSTs of XML text, though? –Rup Jan 10 '13 at 16:09 No it is not making any differences !! –user1301587 Jan 10 '13 at Only we can resolve them for you. Do you have a cache problem ?. The Remote Server Returned An Error (400) Bad Request Gcm

asked 4 years ago viewed 9057 times active 1 year ago Visit Chat Related 2315How do I enumerate an enum?0Bad Request Error 400 - WCF Client-1HTTP POST in .NET doesn't work1305What Always have good anti-virus and spyware protection. In general terms, think about what has changed on your PC since you first started seeing the problem. Check This Out reader = new StreamReader(dataStream); // Read the content. } catch (WebException exWrite) { throw exWrite; } catch (Exception genException) { throw genException; } string responseFromServer = reader.ReadToEnd(); // Display the content.

A simple visual puzzle to die for Subtraction with a negative result Is there a good way to get from Levoča to Lviv? Json Validator Try clearing your cookies, browser cache and browsing history in your Web browser. Summary When troubleshooting HTTP 400 conditions, first remember that the client has sent a request to IIS that breaks one or more rules that HTTP.sys is enforcing.

Do you get the error on more than one Web site ?.

If you get a problem with a long complicated URL (such as http://www.xxx.com?PHPrequest=643&value=dres&cookies=No) but not with a shorter simpler URL for the same site (such as http://www.xxx.com), this can indicate a Fixing 400 errors - general There is a low-level problem in the client or the Web server or both. 95% of the time this is because of a problem on the Remove the urlencode and try. Postman So the Web server was unable to understand the request and process it.

If there is a redirection you need to store the session which is mostly stored in a session cookie. Why did companions have such high social standing? This can be difficult for you to detect. http://gatoisland.com/bad-request/bad-request-error-400-on-mac.php no outgoing connection via ipv4 Why write an entire bash script in functions?

This is not conclusive evidence, but is a good starting point. When taking passengers, what should I do to prepare them? Then try rebooting your PC and any firewall/router you use to connect to the Internet. Why are some programming languages Turing complete but lack some abilities of other languages?

Let's work to help developers, not make them feel stupid. Maybe you are encoding it twice. –DarkXphenomenon Jul 22 '12 at 6:50 How do you get the JSON containing OAuth access token fron the response using this method? –Robin Join them; it only takes a minute: Sign up How to fix 400 Bad Request error? So both are ok depending what he wants to do. –YvesR Jan 10 '13 at 16:54 add a comment| up vote 0 down vote What type of authentication do you use?

introduced new proxy servers or cacheing) that is causing some instability. more hot questions question feed lang-cs about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation POST is usually used with application/x-www-urlencoded formats. Can Customs make me go back to return my electronic equipment or is it a scam?

EDIT This is what I found that works: // Open request and set post data HttpWebRequest request = (HttpWebRequest)WebRequest.Create("myurl.com/restservice/Login"); request.Method = "POST"; request.ContentType = "application/json"; string postData = "{ \"username\": \"testname\", It's supposed to be a simple POST request to https://stackexchange.com/oauth/access_token with a few parameters. request.ContentLength = byteArray.Length; // Get the request stream. I consoled the content-type and data.length before the post request was called, the content-type was text/xml and the data.length is 143.

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