Can not add web service reference

Question

I've been given a Url like:

https://xxxx.gr/xxx/xxx/xxx/xxx?WSDL

to create a consumer.

For testing reasons I've started a new desktop application in C# and when I tried to add the service reference I get the following error:

The request was aborted: Could not create SSL/TLS secure channel.

Then I tried to hit that Url direct from each browser (IE, FireFox, Chrome). They all report that it is insecure connection.

For example, in FireFox I get this info:

https:xxxx/xxx/xxx?WSDL

Peer's Certificate issuer is not recognized.

HTTP Strict Transport Security: false
HTTP Public Key Pinning: false

Certificate chain:

-----BEGIN CERTIFICATE-----
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-----END CERTIFICATE-----

I search the web and also SO but I couldn't figure it out.

Is there something I could do or the problem is from service side?

PS I'm completely ignorant about certificates etc.

Thanks.

I think you need to install https certificate from your service provider. — Ahmer Ali Ahsan
– Ahmer Ali Ahsan, Commented May 27, 2016 at 13:49

C.Fasolin · Accepted Answer · 2016-05-27 13:51:48Z

2

put the certificate into the authors trusted and retry.

answered May 27, 2016 at 13:51

C.Fasolin

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3 Comments

shadow Over a year ago

If it's not trouble to you, can you be more specific? Thanks anyway.

C.Fasolin Over a year ago

open internet explorer > tools>internet option> tab content click on certificate button choose tab "Trusterd Publishers" click on import button and fallow the procedures...

shadow Over a year ago

Thank you for your time but I don't have a certificate file to import. After searching I understood that maybe the server administrator (of the service) did not match correct the certificate or it is self-signed (like for intranet use). Either it's possible because it is a test service. For me I think the only thing I can do is to load the service at run time (not add it as service reference) and create all the proxy classes manually. I think, not sure enough.

Community · Accepted Answer · 2017-05-23 10:28:36Z

0

You can ignore the certificate error if you just want to be able to create your client proxy classes, as per this answer: Bypass invalid SSL certificate errors when calling web services in .Net

...
ServicePointManager.ServerCertificateValidationCallback = MyCertHandler;
...

static bool MyCertHandler(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors error)
{
   // Ignore errors
   return true;
}

edited May 23, 2017 at 10:28

CommunityBot

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answered May 27, 2016 at 14:10

BunkerMentality

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1 Comment

Jesper Over a year ago

The question is for when adding a web reference in Visual Studio, not calling the actual webservice.

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