NEW TP-Link 2300 Router Does Not See Internet Modem

I'm running MAC OS Sierra 10.12.6. Two days ago my wifi stopped working. I checked my Belkin ROUTER first and saw that the internet light was red. I then checked my MODEM provided to me by Morris Broadband and saw that the internet light was green. I can get internet when my computer is directly connected to MODEM but when the TP-Link router is connected to the modem the router does not detect an internet signal (Showing Red Light). Since I am having the same problem with both new / old routers and both new / old modems I am assuming the problem is with the config in MAC.

Please help.

Thanks!

I did not find the right solution from the Internet.

References:   https://forums.techguy.org/threa ... from-modem.1196933 /

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