So im not sure what the problem or SOLUTION is my main problem is im trying to SSH into a linux machine from outside the network ubuntu is running on the machine the one trying to ssh into it is windows 10 via putty. But everytime i try to it says connection timed out.

Ive
-Portforwarded
-made sure port 22 was open on ubuntu
-disabled any firewalls
-made sure the service was started on ubuntu.

It works flawlessly from inside the network just not externally any help would be greatly appreciated. thanks again
i was wandering if setting up DDNS or some other sort of role would help.the main problem i think is im not able to ping the external ip of the linux machine at all i have no idea why. the linux machine can ping my external ipTo be clear, when you are outside of the network, you are trying to SSH into your public IP address and not the same IP address of the machine as you use when you are inside the network?yes im using the public ip to ssh into the machine