My friend cannot connect to my beamp server

So I setup beamp servers before and I have read everything and done everything to try and make it work. When he tries to join it says connection failed for him. I also realized that the port is closed and I redid my router port forwarding and also redid the server and I also deleted the rule in the windows firewall and it still does not want to open the port. I am out of ideas and i have tried everything. I can join of course because its my server.