My recommendation would be to get a serial cable for the apc management card and login to it to do a factory reset procedure. At that point you can run through the whole provisioning process and confirm that it’s all set up correctly and working as expected. I’ve had to do this with several 9631 devices over the years on smt750s and it works great thereafter. Also keep in mind that that firmware on the 9631 is separate from the firmware on the ups itself. Both may need to be updated independently from each other and shutdown entirely to be performed. Best to do it on the bench before placing them into service.
Not sure why this is being downvoted but it’s a great recommendation and I know several folks who run Ubiquiti for both commercial and non commercial applications. While it’s not 100% enterprise grade, it will certainly perform and allow you to grow your network to a level which will softly transition to enterprise grade equipment (and costs) over time. Cisco is pricey and complex to manage based on my experience. But, if routing at the edge is required (bgp, etc.) then you may need to go a more enterprise route.
@op-
What features do you need? What are your sla and uptime requirements? Is this enterprise, small office, or home use? What commitments if any do you have to your end customers?
All of these things will be required to better recommend a solution that will accomplish what you’re looking for. Be advised that routing that much traffic will be pricey especially if going with an enterprise grade solution.