Recently windows server 2016 got some updates KB4561616/62561/50929.
Post this looks like the opc interface on these server are not functioning below error:
Advise returns E_ACCESSDENIED, check DCOM configuration: Access is denied (80070005)
The COM setting launch and activation permission is greyed out for the edit limits button.
Would like to know if anyone has faced this issue, is my understanding taht te windows update has caused the DCOm setting to change somehow which is leading to the interface to not work( the failover pair on 2008 server is working fine) correct and what to do in such case. How to be pro- active to understand such issues may occur.
Any help would be appreciated