Connect to Dynamics NAV 2015 Web service

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Posted on by Fredrik Danielsson

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I am currently implementing a NAV 2015 solution where I need to access a couple of NAV Page Web services. The problem is that I can't get past the Authentication.

I have tried using both http and https but no matter what I try I'm unable to connect.

Trying to browse the Web Service using either IE or Chrome just results in a neverending stream of login windows.

NAV is set up to use Windows Credentials.

Using http I'm able to add the reference to my Visual Studio 2012 project. But when trying to use the service I keep getting errors regarding credentials. Using https the neverending stream of login windows appear.

Example for NAV 2013 like (http://msdn.microsoft.com/en-us/library/dd355316(v=nav.71).aspx) does not work. For example the UseDefaultCredentials attribute doesn't exist. I'm new to NAV but to me it seems like the Web Services implementation have changed from NAV 2013 to NAV 2015.

Is there anyone that know how to configure/connect to the service? Spent the last 2 days testing different combinations of configurations and code.

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keoma 32,729 on at

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RE: Connect to Dynamics NAV 2015 Web service

hi,

follow msdn.microsoft.com/.../dd338962(v=nav.80).aspx

use the sample from chapter "Calling the Web Services" and add the nav webservice in vs2012 as web service reference (not as wcf service reference). property UseDefaultCredentials does only exist when reference the nav web service as .net web service ref. (not as wcf service reference).

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Fredrik Danielsson 305 on at

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RE: Connect to Dynamics NAV 2015 Web service

I will try that again. But for now I keep getting the popup below when trying to add the reference.
I have tried both with and without SSL.

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Tharanga Chandrasekara 23,118 on at

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RE: Connect to Dynamics NAV 2015 Web service

Is your NAV web client working properly?

Plus when you provide your login credentials provide with your domain.

DOMAIN\UserName

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keoma 32,729 on at

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RE: Connect to Dynamics NAV 2015 Web service

are the client pc and the server (with nav service) within the same windows domain?

if there is a firewall active between the 2 pcs, turn it off.

execute the web service url in the browser (ie). do you get a correct result without error (xml structure)?

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Fredrik Danielsson 305 on at

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RE: Connect to Dynamics NAV 2015 Web service

The NAV Web Client works properly and I provide my credentials in the DOMAIN\UserName form´.

Both the client and the server are on the same domain. I have administrator privileges on both client and on the server.

The Windows firewall is active (set by Group Policies) on the server but all port that are involved are open.

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keoma 32,729 on at

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RE: Connect to Dynamics NAV 2015 Web service

is the account you use as login credentials for the web service a nav user with role super?

did you try the full qualified servername instead of the (short) servername?

try to use the ip address instead of the servername in the webservice url:

e.g. http://servername:7047/... --> http://10.0.0.2:7047/...

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Fredrik Danielsson 305 on at

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RE: Connect to Dynamics NAV 2015 Web service

The user has SUPER credentials in NAV.

I've tried the following (all tries requires login)

http://ipaddress - OK

http://shortname - empty webpage

http://fullname - empty webpage

https://ipaddress - Question about cert then OK

https://shortname - Question about cert then emtpy webpage

https://fullname - empty webpage

So the responses are the same with short and full name, the quesiton about the cert for the ipadress and the shortname are expected since the cert is issued to the fullname.

Any ideas to why is has this behaviour?

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keoma 32,729 on at

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RE: Connect to Dynamics NAV 2015 Web service

hi,

the dns resolution does not work correct.

to fix follow:

http://technet.microsoft.com/en-us/library/cc755882(v=ws.10).aspx

http://technet.microsoft.com/en-us/library/cc959340.aspx

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Fredrik Danielsson 305 on at

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RE: Connect to Dynamics NAV 2015 Web service

The dns resolution is fully functional. It will resolve the hostnames correctly.

I am able to run client, administration from my client without any problems.

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keoma 32,729 on at

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RE: Connect to Dynamics NAV 2015 Web service

hm, ok.

then check the SPNs and follow this thread (also a discussion about empty pages, etc.):

www.mibuso.com/.../viewtopic.php

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