I have a 6TB My Cloud running on a static IP outside of the DHCP range via Cat5e to a Ubiquity Unifi network (Gigabit USG, 16-port POE switch with an AP-PRO). I have a Mac running High Sierra 10.13.6 (wifi) and a Raspberry pi 3B+ running Pi Hole on a DNS of 192.168.1.100. My Unifi controller software is also on the PI. The NAS is on a static IP 192.168.1.99 and all firmware is up to date.
For the life of me, my NAS will not stay connected over the network through my Mac. I only have one Mac, and every 10-30 mins, the NAS will disconnect and disappear from the network. This will require me to shutdown the mac and restart or wait a significant number of minutes before reestablishing a connection. After restart, the NAS will reappear on the network and I can begin my file transfers (mostly torrents). I’m still able to access the MyCloud portal and all of the contents through my phone just fine over wifi.
I’ve tried switching the NAS to SMB3 (although I don’t own a Windows device) from AFP but that doesn’t seem to work. I’ve tried mounting the drive to the network via smb//192.168.1.99 and that doesn’t retain connection. A full health check on the WD NAS comes back clean and I can’t determine the problem. Media Streaming is off and Itunes sharing is disabled. My next step is to disconnect the USG and go back to my Netgear Nighthawk to see if the USG is interfering with the network links. I don’t want to do that because of the time it would take me to reconfigure the network, so here I am…
I also experience complete disconnect from the internet on my Mac that sometimes happens simultaneously with this NAS problem. I run torrents in the background, hence the NAS. I first noticed the problem because my torrents would disconnect and the client spits back a connection error to me. I’ve used both qTorrent and uTorrent and I get the same connection problems with both.
I don’t have Plex or any other stream service connected.
UPnP is enabled and I also have the Unifi Auto-Optimize set to ‘off’.
Prior to the Unifi network, the Mac and NAS would communicate just fine without disconnecting. I’ve had this NAS since 2017 without any trouble until now.