I have a QNAP NAS hooked up to a DLink Router (DIR-836L) at home. The NAS is set to a private IP of 10.10.10.x Both devices have latest patches and firmware.
I have a .com address and subscribe to a DDNS service (which is updated by the NAS every ten minutes) so I can log onto my NAS from anywhere on the Internet. It worked great for a couple of years. I type xxxxxxxxxxx.com into my browser and there is my login page. I’m the only person who accesses it.
I could not log onto the NAS a few weeks ago and when I logged onto my DDNS service I saw the xxxxxxxxxxx.com was set to the 10.10.10.x address of the NAS. I fixed it by going home, logging onto the QNAP, getting the external IP, editing the DDNS record manually and all is well for about a day.
However, the problem keeps reoccurring. I think it’s the DLINK router that’s serving up the private IP as the NAS can see the proper external address (it shows it on the QNAP control panel).
I tried both QNAP and DLINK forums to no avail. No one has heard of this. I’ve reset both devices to factory defaults twice each. Does not seem to help.
As Petri is my forum of last resort, can you assist?