May not be properly seeing your external address, also takes a day to get conncetions.
I forwarded port 9333, the p2pool instance is reachable from outside, but noone ever connected to it (except one for testing). This is around one, two weeks now.
Some people suggested that a node has to be "reliable" for people to connect to it. The node is running 24/7, but the internet connection reconnects every 24 hours. Maybe this is the reason.
Ente