Hello, Guys.

It is found one yellow warning symbol is attached with siemens network switch. it is only appeared druning these switches are online. And I don't know how to remove or reset it. the network veiw is showed the all network communication is working well.

online diagnosis is showing "unknown"

can you give any suggestion?

 it shows "unkown"

ChristophD

open diagnostics (Device view) of the switch and check the information there