SIMATIC WinCC Open Architecture Forum

Hello all
In version 3.19 P001 the following message always appears when starting any manager in a redundant System:
"Unexpected state, Function: OS_getaddrinfo failed with error (11001):No such host is known."

Does anything else need to be configured or is this a bug? This message did not appear in version 3.19 P000.

This issue is already known and our development teams are working on it. For the next patch the bugfix is planned.
It is related to resolving hostnames and IP-addresses but does not have any negative impact.

Best Regards
Leopold Knipp
Senior Support Specialist

@ Leoknipp:
Greetings..!

Is the same issue applies to WinCC-OA v3.18 P0015?

Because we are also facing the same one as follows
WCCILsplit (2), 2023.03.01 18:29:52.237, SYS, WARNING, 54, Unexpected state, OS_getaddrinfo, Function failed with error: -2
WC
WCCOAui (0), 2023.03.01 18:30:03.340, SYS, WARNING, 54, Unexpected state, OS_getaddrinfo, Function failed with error: -2
WCCILredu (1), 2023.03.01 18:29:52.037, SYS, WARNING, 54, Unexpected state, OS_getaddrinfo, Function failed with error: -2
WCCOAtoolLogViewer(1), 2023.03.01 18:29:52.129, SYS, WARNING, 54, Unexpected state, OS_getaddrinfo, Function failed with error: -2
WCCOActrl (0), 2023.03.01 18:29:51.319, SYS, WARNING, 54, Unexpected state, OS_getaddrinfo, Function failed with error: -2
and so on.

Please confirm.

I have issue too with 3.18 P015.

Is it fixed with P016 ?

Same thing happening on 3.18P16

The bugfix in 3.18 is planned for the next patch. It is planned to release the patch mid of April 2023.

Best Regards
Leopold Knipp
Senior Support Specialist

The 3.18 P17 resolved this warning message, thanks for the work !