WinCC Client-Server: No data connection could be established

[che1arsky]

Hi everyone!

I have a network, which include server and two clients WinCC.
Server works without problems with trends (element OnLineTrendControl). But clients don't have connection to database and Status Bar indicates icon with two red displays (No data connection could be established). Tell me please, how i can rectify this problem??

Thank you!

Best regards!