Cant access mobile app with cisco VPN

Hey guys,

i am not able to login using my native app which connects to different test env to login .

Although I am able to connect to the test envs with normal browsers with CBT.

Steps to reproduce:

1) Start the tunnel

2) Start the VPN ( as all the test envs are accessible with vpn ).

3) Start Live test.

4) upload the apk or ipa file ( as we have native app for both platform )

5) Once installed tried to login and getting error " Insecure connection '' An insecure connection is preventing sign in""
Any help would be highly appreciated. This is stopping us from doing any manual testing with the app.