Hello!
Sometimes I have to restart the module OPC UA because, even if all is working ok suddenly I can read tags coming from a PLC (connected using Modbus) but I can’t subscribe to them. Why Is this happening? 
What errors do you see in the System Console logs in the gateway?
I didn’t look at the logs… next time the error happens I will take an snapshot.
You should still be able to go back and check.
[quote=“SamJaimes”]Here is the log
[attachment=0]wrapper1.log[/attachment][/quote]
I don’t see anything specific, but try upgrading. You’re running 7.2.4 on whatever gateway that log is from.