I've set up SharePoint 2019 on-prem and have a few sites; I've also set up SSL. I logged in SharePoint mobile application the first time it asks the server url and credential .but as I login to the app, I'm prompted to log in again. then, it doesn't accept my credential.

I can open both http://portal{domain}. and https://portal.{domain} in browser from my mobile.

Here is more detailed images.

I also send a snapshot of my authentication setting in Central admin which is claime-based and IIS. enter image description here enter image description here

  • I have similar problem with you. My app is prompting me "There's no network connection" while I am sure I have hahahha....
    – Mark L
    Commented Sep 4, 2019 at 7:48
  • Is it an IOS, Android or Windows OS in your Mobile ? Commented Sep 4, 2019 at 8:08
  • Mine is IOS , I've tested Android. the same problem. Commented Sep 25, 2019 at 8:02

1 Answer 1


When you configure SSL, make sure you don’t use self-signed certificates. The SharePoint mobile app can't use self-signed certificates, or those issued by an in-house Certificate Authority (CA).

Reference: Supporting the SharePoint mobile apps online and on-premises

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