Getting this error which looks like the same issue
Oct 28 09:44:04 jason-laptop NetworkManager: nm-vpn-connection.c.828: NeedSecrets failed: dbus-glib-error-quark Rejected send message, 1 matched rules; type="method_call", sender=":1.4" (uid=0 pid=1090 comm="NetworkManager) interface="org.freedesktop.NetworkManager.VPN.Plugin" member="NeedSecrets" error name="(unset)" requested_reply=0 destination="org.freedesktop.NetworkManager.pptp" (uid=0 pid=3917 comm="/usr/lib/network-manager-pptp/nm-pptp-service))
Getting this error which looks like the same issue
Oct 28 09:44:04 jason-laptop NetworkManager: nm-vpn- connection. c.828: NeedSecrets failed: dbus-glib- error-quark Rejected send message, 1 matched rules; type="method_call", sender=":1.4" (uid=0 pid=1090 comm="NetworkMa nager) interface= "org.freedeskto p.NetworkManage r.VPN.Plugin" member= "NeedSecrets" error name="(unset)" requested_reply=0 destination= "org.freedeskto p.NetworkManage r.pptp" (uid=0 pid=3917 comm="/ usr/lib/ network- manager- pptp/nm- pptp-service) )