I’ve updated Ignition to version 7.9.13. But I can no longer connect to Beckhoff UA OPC servers. I have the following error: nonce must be at least 32 bytes UaException: status=Bad_NonceInvalid, message=nonce must be at least 32 bytes at org.eclipse.milo.opcua.stack.core.util.NonceUtil.validate…

Yup, same issue here… We are using unsecure connections to a vendor supplied OPC server that we can’t configure security on.

I don’t think we’re doing nightly builds in 7.9 so I think staying on 7.9.12 is the only solution for now. 7.9.14 will include a relaxed nonce validation for these non compliant servers. I’m hoping to get it into an 8.0.8 nightly build in the next day or so.

Kevin, we are on 8.0.6 in our dev environment with no OPC connection issues - will 8.0.7 break the connections or will 8.0.8? Not sure what you meant by “Hoping to get it into an 8.0.8 build” - get the security in or the relaxed nonce validation?

The stricter nonce validation that caused this issue is in 8.0.7 I believe, if not already in 8.0.6. The relaxed nonce validation will go into an 8.0.8 nightly build. This is only an issue with certain 3rd party servers when no security is used.