I upgraded from a Netgear to a Billion 7800N last week and I love the router. It's been rock solid, fast and has great range. Ever since then, I can't see my Drobo FS (a drive rack which keeps your data safer) back up device anymore though. Basically, the Drobo was connected to my router through Ethernet cable. I've done the same on the Billion 7800N, the cable going into one of the ports 1-4 (I tried a few). I can see the network light blinking on the drive, so I know it's "talking" to the router. However, the drive is not visible anymore from any machine.
I wrote to Drobo support and they replied with this link: http://support.drobo.com/app/answers/detail/a_id/257
Drobo Dashboard is already allowed on my PC's firewall. So that's not the issue. I guess that leaves the firewall on the Billion? Could you guide me on what to enter where to apply those changes? The interface is quite different from the Netgear and I'm a bit at a loss.Which TCP/UDP ports need to be open on a firewall for my Drobo FS or DroboShare?
Drobo FS and DroboShare both use SMB over TCP, so you need port 445 open.
If you want Drobo Dashboard to be able to connect through a firewall (to communicate with Drobo FS, DroboShare or DroboPro using iSCSI), the easiest way is to put Drobo Dashboard in the firewalls' allowed-programs list.
If your firewall doesn’t offer a feature with an allowed-programs list, you need to open ports 5000 and 1024-65536. Drobo Dashboard connects to port 5000 and then randomly picks a port in the range for broadcasting.
Many thanks in advance.