Hi @Nicduch I ran a test today - disconnected internet and both large ping and no-flag were still getting logged. Turning off all Apple devices on my wifi and the alerts stopped. You should try the...

Hi @Henke99 There is a long thread on the large ping attack issue here https://community.tp-link.com/en/business/forum/topic/269886?page=6 It seems the alerts are generated by apple devices sending...

@TPOllihome At least you know what your getting for Christmas and New Year An outage. Happy new year 🎁

Hi, @NittyMDev I came to the same conclusion that it was apple devices! Did a long post in this thread about it. Good work!

Hi @yorkman , This is where I checked the current OC200 firmware and controller version. And here is the never ending alerts i logged from 8.30am to 8.40am - icmpv6 only showing up on the LAN side of...

Hi @Fae Controller Version 5.7.6 Model OC200 1.0 Firmware Version 1.21.7 Build 20221206 Rel.58608 RT01 detected Large Ping attack and dropped 12 packets. Omada Controller v5.6 will support showing...