Woke up to weird sound. Fragile, DDOS attack and remote access all in my AX6000 router log.

Newer routers will flassify more types of traffic detected. Pretty much all of the DOS related stuff can be ignored unless you see the log being flooded rapidly and internet traffic performing worse than dialup.

Due to how many infected systems are out there, as well as how many bot networks are out there, they are constantly checking through every IP address in an endless loop. A common term to refer to it is internet background radiation. It is simply unwanted traffic that everyone receives because out of billions of people on earth, there are still a few million that believe a browser toolbar will give them free movies, or some app will "fix" their registry or update their drivers or boost performance.

Older routers will not add traffic to a log that the firmware never contined thhe code needed to identify the traffic.

Beyond that there are still systems online running windows XP and even windows 98 that are infected, and still trying to spread Nimda