My SFT1200 Travel Router will not acknowledge the WAN line

I have a two router system. I have a star link router modem, and have an adapter that adds another ethernet cable going to the micro router. It worked when initially plugged in, but after I unplugged it and re-plugged, it doesn't even know there is a cable plugged in. I SSHed into the router and it says its on. I'm confused HELP!

Can you give more details?

star link router has more problems in compatibility than other router.