Well I thought I had it but I havent. Miner restarted and now stuck at 10 connections again. I've checked the port is open with various checkers online and the IP address for the Apollo is static. Also allowed port access with my firewall (not that it should affect the router I suppose as its on my main PC). But still its stuck at 10 connections.
Did you ever solve this?
I just got my device, port forwarded 8333 and cannot get above 10 connections. It's ramps right up and hit that 10 ceiling.
wait until node fully sync.