Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Web service not working in China - 400 Bad Request

Posted on 2010-11-30
10
Medium Priority
?
485 Views
Last Modified: 2012-05-10
Hi Folks,

I have a standard .NET 2.0 AMSX web service which has been working for a few years. We're trying to connect a server in China, and its coming up with 400 Bad Request.

The browser (ie6) can access the web server through https://dnsname

The browser can also access the webservice itself though https://dnsname/webservice.asmx

But the actual client software is still coming up with 400 bad request - any ideas please ?

thanks

0
Comment
Question by:plq
10 Comments
 
LVL 18

Accepted Solution

by:
deighton earned 1000 total points
ID: 34237795
can the client connect to other web services, or is it just that one?
0
 
LVL 8

Author Comment

by:plq
ID: 34237823
Can you suggest a public web service that we could test with ? thanks
0
 
LVL 21

Expert Comment

by:Alpesh Patel
ID: 34237830
pls check firewall settings.
0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 
LVL 18

Expert Comment

by:deighton
ID: 34237841
0
 
LVL 8

Author Comment

by:plq
ID: 34237852
We're connecting back with them in a couple of hours so we'll try that then

Regarding firewall, wsdl doesn't use any ports except http/https, we know it works from IE, so I don't think it could be a firewall issue ??
0
 
LVL 8

Author Comment

by:plq
ID: 34238891
Yes, that service works, but ours doesnt !
0
 
LVL 8

Author Comment

by:plq
ID: 34239173
Furthermore, our webservice works through the browser, I changed web.config to allow it to work remotely, and thats fine. I can now "invoke" a simple method from the browser https://dnsname/webservice.asmx, no problem.

But from the program, it still raising 400 bad request.


0
 
LVL 3

Assisted Solution

by:manlimnag
manlimnag earned 1000 total points
ID: 34291310
May be on client machine firewall is not allowing the application to call web service, but ie being trusted application its working. So check client firewall setings and virus protection softwares
0
 
LVL 8

Author Comment

by:plq
ID: 34324098
Lost contact with the client and no possibility now of ever taking this further
0
 
LVL 8

Author Closing Comment

by:plq
ID: 34411004
lost contact with client, so this is a dead end, thanks for helping anyway
0

Featured Post

Important Lessons on Recovering from Petya

In their most recent webinar, Skyport Systems explores ways to isolate and protect critical databases to keep the core of your company safe from harm.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I have developed many web applications with asp & asp.net and to add and use a dropdownlist was always a very simple task, but with the new asp.net, setting the value is a bit tricky and its not similar to the old traditional method. So in this a…
Introduction This article shows how to use the open source plupload control to upload multiple images. The images are resized on the client side before uploading and the upload is done in chunks. Background I had to provide a way for user…
In response to a need for security and privacy, and to continue fostering an environment members can turn to for support, solutions, and education, Experts Exchange has created anonymous question capabilities. This new feature is available to our Pr…
Please read the paragraph below before following the instructions in the video — there are important caveats in the paragraph that I did not mention in the video. If your PaperPort 12 or PaperPort 14 is failing to start, or crashing, or hanging, …
Suggested Courses

876 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question