While in Performace mode do I need an internet connection?

I head or read somewhere that a lan/wifi connection should be turned off in performance mode, cause the connected to the internet PC will ping with a beep and cause the the DJM900NXS2 to lock-up, does anyone else have this problem?

rekordbox seems to work better without an wifi/lan internet connection while

in performance mode, can anyone verify this problem?

this problem is very annoying, do I need to send my mixer in for service?