I will contact to technical support team for the resolution. Meanwhile i will try my best level from my side. For this i want to be discuss some points with this group. here i am doing Initializeing PPP server over UART in that case my module is a server & PC is a client. I want to be communicate between server and client by using PPP connection over UART. In that case it is able to calling cbEvhBearer call back. But it is not able to calling cbEvhPppAuth call back because my understand is that client is not authenticating itself and i dont know how to client authenticate itself or with server but we are getting WIP_BERR_PPP_AUTH_FAILED. I dont know how to test from client side and i am just checking server API which has provided by Sierra demo code. Even i am facing same issue PPP connection over UART in client mode also. Please give me some suggestions on the issue.
-Ganesh