Well, you led me to the solution!
We have four different storage groups with their respective master nodes. In our ‘main’ group, we were retiring our server “fog1” and replacing it with “fog2.” Last night, I made the switch: I disabled “fog1” from master and set “fog2” to master on the ‘main’ group.
The issue wasn’t with those settings, but “fog2” still had “max clients” set to 0. Setting this to 10 fixed the issue. I had only looked at the configuration summary – which looked fine to me! (master node set correctly).
Thanks!