vpn android is not connecting in some android devices (Motorola/Samsung s8))

[hami]

Hi,
I am using openvpn android library. It is working fine in few devices like pixel but not working in few devices (Motorola/Samsung s8)) please help me

logs:
Starting openvpn
command: >INFO:OpenVPN Management Interface Version 1 -- type 'help' for more info
command: >HOLD:Waiting for hold release:0

In notification displaying message ( Waiting for usable network)

android version:
Marshmallow 6.0.1

vpnProfile
ConfigFile(# Enables connection to GUI
management /data/user/0/com.test.test/cache/mgmtsocket unix
management-client
management-query-passwords
management-hold
setenv IV_GUI_VER "com.test.test 1.0.4"
setenv IV_PLAT_VER "23 6.0.1 armeabi-v7a motorola APQ8084 XT1254"


Please help me as my app is live on playstore but few users reporting this issue.