Checking router firmware fails

I just downloaded Netgear Genie today and set up my OpenDNS account. I was able to see all the devices in Network Map and Router Setting. But after I restarted Netgear Genie, it failed when checking router firmware saying that I'm not connected to a supported router. I'm using model C6300 running firmware V3.01.12. Has anyone run into a similar problem? Thanks in advance.