@krhankins 

Can you confirm which LED light goes off when the internet is not available? As we can confirm, the fourth LED from left to right (starts from the PWR LED) should be the Internet one, if it is amber, that means the router gets disconnected from the modem or internet, in other words, there is no internet at all on the router, so the laptop should not be able to get the internet when it is connected to the router with LAN cable.

Can you confirm again what is the WAN connection type on the AX1500, and was there still a WAN IP address when the internet light is amber? Who is your ISP? Please go through the troubleshooting suggestions to locate the issue and get back with the necessary information for follow-up.