Cannot connect with pptp in RHEL 7

Issue

• When trying to connect with pptp configuration in RHEL 7, seeing the following errors:

   localhost pppd[17566]: Connect: ppp0 <--> /dev/pts/1
   localhost pptp[17567]: anon log[main:pptp.c:333]: The synchronous pptp option is NOT activated
   localhost pptp[17574]: anon log[ctrlp_rep:pptp_ctrl.c:254]: Sent control packet type is 1 'Start-Control-Connection-Request'
   localhost pptp[17574]: anon log[ctrlp_disp:pptp_ctrl.c:754]: Received Start Control Connection Reply
   localhost pptp[17574]: anon log[ctrlp_disp:pptp_ctrl.c:788]: Client connection established.
   localhost pptp[17574]: anon log[ctrlp_rep:pptp_ctrl.c:254]: Sent control packet type is 7 'Outgoing-Call-Request'
   localhost pptp[17574]: anon log[ctrlp_disp:pptp_ctrl.c:873]: Received Outgoing Call Reply.    localhost pptp[17574]: anon log[ctrlp_disp:pptp_ctrl.c:912]: Outgoing call established (call ID 0, peer's)
   localhost pptp[17574]: anon log[ctrlp_disp:pptp_ctrl.c:803]: Received Stop Control Connection Request.
   localhost pptp[17574]: anon log[ctrlp_rep:pptp_ctrl.c:254]: Sent control packet type is 4 'Stop-Control-Connection-Reply'
   localhost pptp[17574]: anon log[callmgr_main:pptp_callmgr.c:266]: Closing connection (shutdown)
   localhost pptp[17574]: anon log[ctrlp_rep:pptp_ctrl.c:254]: Sent control packet type is 12 'Call-Clear-Request'
   localhost pptp[17574]: anon log[call_callback:pptp_callmgr.c:81]: Closing connection (call state)
   localhost pppd[17566]: Modem hangup
   localhost pppd[17566]: Connection terminated.
   localhost avahi-daemon[731]: Withdrawing workstation service for ppp0.
   localhost pppd[17566]: Exit.