I had ATT just before Sonic and had a WD My Cloud (personal cloud) connected. I did the same kind of hookup on the Sonic router but it is not being found.I'm using only wifi, not ethernet as it is all the way across the room. I plugged the WD power in of course and the ethernet cable to the router. Same thing as through the ATT router. Did I miss something? It just isn't being found and no idea why not. Error message just says Can't connect to this device. Thanks.
I am a little confused. You mentioned Wi-Fi and not Ethernet, but later mention the Ethernet cable to the router. Would you be able to clarify your setup?
Is the computer Wi-Fi only and the Personal Cloud is plugged into the router via Ethernet? Is it the other way around? Do you only have the one modem/router provided by us or are the multiple routers at your location?
Sometimes devices that utilize your network need to run through a setup wizard or have an installation process. If this is the case, you may want to contact Western Digital or go to their website for information regarding that.
Edit: I would also be interested in seeing if a firmware update to your router would resolve this issue. If you could PM me your address I'd be glad to push that out.