First time posting in the forums! I've got a decent amount of experience but this one has me stumped. One of my clients has a home office setup with 2 Dell Inspiron PC's connected to a Netgear switch, connected to a Netgear Nighthawk router. On one of the computers, in the lower right hand corner is a yellow triangle indicating an issue with the internet connection- says it is connected to the network but has no internet, yet the internet is working fine. Built in troubleshooter just resets the the network card which clears it but it returns upon restarting. I have tried everything I can think of, from verifying all cables are seated, uninstalling and reinstalling NIC, updating BIOS, and attempting ipconfig /release which just tells me it cannot be performed while media is disconnected. All attached network devices still show up. Any ideas? My thought is that it is perhaps using the internet from the other computer on the network but I don't know how to verify that. I appreciate the input, hope the post isn't too long!