NetGear R6400 - shows not connected to internet but it is!

I’m having issues with my netgear router. It’s showing all my devices are connected on the genie map but there is a red line from the globe to the devices. Most of my devices are not working on WiFi. My TV goes in and out as if loosing connection. It appears there is a update for my router but it will not update. Sometimes it says up to date but later it shows the same update available. There are 6 LED lights lit up on my router. Two are blinking fast but are not always and one is blinking somewhat. I don’t know what to do to try and fix this!