Netgear RAX20 wifi

Hey not sure where to post this.. .first time.

I have a Netgear RAX20 with no issues setting up and getting it working. Im using in a business enviroment and when i check the logs it says im getting a fraggle attack from 10 or so pc's internally none that are connected ever 10-20 seconds. I know this isnt true, however how can i fix\stop this? I have gone at support several times and they are worthless. I need log outputs for auditing purposes and these F\P arent goign to work.

any help would be great!