The orange light says "The router’s Internet port is connected, but the internet service is not available." Try using a different Ethernet cable as there may be issue there even though it works for your PC. May be a marginal connector.

@ArcherC8

I tried connecting it directly to the modem with the cable that came with the router.  I still go the amber light.

@tomc 

 

Try the steps in the first post of this thread: https://community.tp-link.com/us/home/forum/topic/150603

 

That cable may be bad. See this post where another poster had an issue with the supplied cable. https://community.tp-link.com/us/home/forum/topic/184814?replyId=394988

@tomc 

I was able to set up another router in exactly the same place using exactly the same cables.   It is a TP-Link N600.  Unless the TP-Link AC1200 is more sensitive, I am going to assume it is defective and return it  to Amazon.  Is  there  any other reason that  I could set up a  TP-Link N600 but have connection problems trying to set up the TP-Link AC1200 in exactly the same place in the network?

I also would return the router as both should work the same.

@tomc 

Thanks for your help

@tomc 

 

Going back to your original issue if the internet light is amber then two things are happening:

 

1. The modem is not recognizing the new router so it is not giving the router a public IP address. Log into the router and look at the WAN or Internet IP, if it is 0.0.0.0 then the modem needs to have the MAC binding reset, the ISP can do that.

 

2. The new router has a IP address from the modem, but needs different DNS servers. You would go into the WAN settings of the router, then assign the primary DNS to be 8.8.8.8 and the secondary to 8.8.4.4

Tony Try calling in. The comcast modems are not compatible with the new TP link routers. Tech service walked me through it by changing a few settings. T

@tomc 

I have already returned the router to amazon.

I appreciate your help, but this seems too complicated.  With the old router I just pluged it in, went to the setup web page, and that did everything for me. 

I am disappointed with TP-Link and will try another brand.