OPC UA connection to server impossible after update from 3.16 P006 to P017

[daniel.ponader]

Dear all,
we upgraded an installation of WinCC OA from 3.16 P006 to P017. Now the connection to some of the connected OPC UA Servers is not possible anymore. Basically with anonymous login and without security strategy "none" it works fine, but the servers don't accept control commands from anonymous clients. In P006 it was possible to set the security strategy to "none" and nevertheless to use the user login with password which was fine for the servers. With P017 this is not possible to configure the server access with "user/password" with security strategy "none" --> Statuscode: BadSecurityModeInsufficient. Unfortunately the servers are older ones and do not fully support all security strategies. The only one which is supported is "Basic128sa15" with "Sign&Encrypt" but this doesn't work correctly -->Statuscode: BadNonceInvalid.

The servers can't be updated, so there is no currently no way solve the not fully supported security strategies issue.

Is there a possibility to use user logon with security strategy "none" in 3.16 P017?

Thanks and best regards
Daniel Ponader

[mplatz]

Dear Mr. Ponader,

For further help and investigation please re-open your task on our Support Portal using following link:
For the common support there are analysis times defined, see the entry "Support & Services" --> "Customer Support" at our homepage.
http://www.etm.at/index_e.asp?id=9&sb1=27

Please take into account that some basic information is needed for a new support request.
Therefore please have a look at the following entry in the Knowledge Base:
https://www.winccoa.com/knowledge-base/ ... c14e86d084

Also within opening the Service Request please send following files for further analyses:
PVSS_II.log
config-file

Thank you in advance.

kr,
Platzer Matthias