What could cause an Alarm Subscription to become invalid?

My central gateway log contains many entries like this.

What can cause this to happen? It's fairly regular, multiple times a day, almost always the same 5 sites.


Do you have an alarm journal set up? If so you can try to find any Alarm Events with the specific ID in the error above. You cee what Tag that alarm comes from and see if anything stands out.

I suggest reaching out to support so that we can take a look at your gateway network architect structure and troubleshooting further.