Please check the Power point file for the setup of the both devices.
Be reminded, most of the time, your link should be fine with the Power point (FAQ_How to setup VRT-402N with MH-2001.pps) example.
However, if you encounter the link faile, please check tha:
- Have you key in the correct WAN IP for both ends.
- Have you key in the correct IP Subnet for both ends.
- Have you choose the correct Encryption for both ends. Say, Phase 1, phase 2.
This example should also helps you for SG-500, SG-1000, CS-1000, CS-2000 Configuraiton.