Ok so curious problem.
FTP enabled on the MyCloud, ports forwarded, user accounts set up perfectly. Using a port checker, port 21 is unreachable.
So I check the port forwarding and restart my router and suddenly it works! However, I try to connect again after disconnecting and now it doesn’t.
Checking a port checker at each stage, port 21 is open, then as soon as I disconnect from my first connection, it closes.
My FTP works fine internally and I have tested switching off the FTP and attemtping to re-connect. It works as expected, FTP is off when the switch is off and on when it is on, no surpise there. This issue doesn’t happen after a Cloud reboot or reset, only from my router end.
I timed it to see how long it stayed on for (the port) and it seems that it will stay on indefinitely as long as I make no connection to the FTP.
So what is going on? A port that likes to turn itself off as soon as a connection is made to it? Or the My Cloud only opening FTP externally and failing to block the first connection to it, then deciding to do so.
It’s such an odd issue and I have found it nowhere else through my searches. Any assistance welcome, thank you.
EDIT: Forgot to mention I have a QNAP NAS server on the same network and that works perfectly when FTP is enabled, Stays up and can be connected to from anywhere externally and internally, leading me to believe it is a problem with the My Cloud and not the router. I have the FTP on the QNAP turned off though, so there’s no port conflict there even though it wouldn’t create one anyway.
few extra notes:
My Cloud is in DCHP mode but with a DHCP reservation on the router to save having to enter all the IP information in the static mode (however, I can do this if necessary, was just a shortcut I took)
Cloud Access IS enabled and with port forwarding active on ports set to Auto (I’ve had issues setting up custom ports for it and it has NEVER worked no matter how much I port forward… issue related?)