I guess I just hoped that since it's the same hardware that I run at home that it'd work at the office too.
The physical machine was completely replaced with a unit direct from Supermicro. The RAM has been replaced as well and it's the same kit that I run at home. The SSD has been completely replaced as well with a new install where I only imported the config.
I really don't think there's a compatibility issue as I've been running the same setup hardware wise at home for almost a year now with the only difference being I'm using a Micron SSD vs a Samsung.
I also don't really want to start taking parts from my machine at home either so I guess we are just left with random reboots for now.
I may just download OPNsense and see if it acts any differently. I just don't know how to either confirm or eliminate Untangle as being the issue unless I try another router OS.
The only other thing I can come up with is to reset to factory defaults in Untangle and configure it from scratch again.
I'll look thru the logs but they haven't proven to be helpful thus far.