Of course, one of the first things to test is Autonomi!
Ordered public ip, but it takes time… I pressume doubled NAT is not perfect setting for Autonomi… how about the IPV6 support? Public ipv6 included by default, would be no need for begging for the ipv4 
Btw, my pinetab stops all my 4 nodes if I go to sepolia www page, the cloudflare eats over 50% of my cpu, which causes them to stop… 
I think you need a ipv4 address.
Which Router are you using?
My router is Asus rt ax 58u. Public ipv4 is ordered, but not yet got. Anyway, I do have public ipv6.
How many nodes do you want to run? What is the speed of your fiber?
This should be okay depending on how many nodes you want to run. If you want to max out your connection you should look at something like a Mikrotik.
Just trying out with 4 nodes. 1G fiber.
You’ll be fine. I think your limit is going to be how much CPU and storage you have.
how good is your upload speed ?
Symmetric, 1G for both directions
did you put that router behind your isp modem ?
No, I’m not using the isp router at all. I Connected my own directly to the fiber bix.