Router Security Question Nighthawk RAX120

Looking at my router logs in advanced settings, I noticed that I got a DDoS attack on port 80.  As far as security goes with my settings, I use WPA3 for the 5GHz and WPA2 for the 2.4 GHz.  Are there any other router security settings that Netgear has to help prevent these DDoS attacks on my home network?  I use a #3 rated paid anti-virus/firewall program recommended by popular independent A/V software reviewers, but my A/V software didn't stop the DDoS attack because it wreaked havoc on my network.