Unable to connect to server using Dynamics NAV mobile app

liizz

Hello all,

I have successfully installed Microsoft Dynamics NAV 2016 and also web client (http://localhost:8081/DynamicsNAV90/WebClient) on my computer. Now, I want to use this URL for web client on the Dynamics NAV App that I have downloaded from PlayStore. When trying to add 'http://computername:8081/DynamicsNAV90' as service name on my mobile app, I am receiving the message 'Could not connect to the server' (Please refer to attached message). However, the web client on my computer is opening without any issue.



Can somebody help me solve this issue?

Thanks

xStepa

Mobile app requires a SSL connection, so you need a valid certificate for your server:
https://docs.microsoft.com/en-us/dynamics-nav/how-to--configure-ssl-to-secure-the-connection-to-microsoft-dynamics-nav-web-client

liizz

Hello,
Thank you for your reply. Since it is a test environment, i have created a self-signed SSL certificate and bind the certificate to the port 443 on the link you provided.

However, I am still getting the error message (Could not connect to the server) on Mobile app.



Is there any service that I should install on my mobile?

Can you please help?

Thanking you.

xStepa

Hi, no - no other service necessary - just the app. But if you used a self-signed certificate, you have to install your public key on the mobile device. Also try to connect to a web client via HTTPS first, if everything works.

liizz

Hello. Can you tell me if I require a self-signed certificate. and bind it to https? Also, how to install public key on my mobile device? I am able to connect via HTTPS on the web client from my web browser.

xStepa

Hi, you definitely need a certificate - self-signed one is free, but brings also problems on other devices (it's not trusted). When HTTPS works in your web browser, than it seems that the only problem is really the trustabillity of your certificate ...

So, find your certificate in your store on the server, export it (without private key) and import to your mobile device OR buy a valid certficate and you save much time ...

liizz

Hello,

Thank you for your reply. OK I have install a self-signed certificate on my PC and its working on browser with HTTPS.

Is it ok on web browser? Also, kindly note that I am currently using Windows Authentication to connect to the web client on my PC.

I need to understand what the next step to have it available on Android mobile.

OK, I have exported the security certificate with the option "No, do not export the private key" on my PC. The file type is of .cert.

But when I downloaded the security certificate on my mobile device, I am getting this error message "Private key required to install a certificate". Can you please help?