So I was setting up my friend's NAS. Got everything worked in minutes (dns, port forwarding etc.). Enabled ftp connection tried it locally, working. Tried remotely, timed out...

After half an hour I was about to tear my hair out one by one when he suddenly said to wait a sec he knows what's the problem. Tapped two on his phone and suddenly, it's working.

THE FUCKING PHOTO UPLOADING FROM HIS PHONE TO THE CLOUD BLOCKED ALL INCOMING CONNECTIONS AND HE WAS AWARE OF THAT ALL ALONG. WHAT THE FUCK MAN, DO YOU ENJOY SEEING ME STRUGGLE?? That was literally an "I'm out" moment.