Buffalo 2-Bay RAID NAS Device

I gave this a chance because the price was so much better than the Synology NAS since disks were included. I have been trying to get network-attached storage set up so that I can have a location for my Time Machine backups. What I do like about it: - Disks are included which theoretically make things easier (and cheaper) - It has two drive bays and RAID 1 is automatically enabled, which is probably what most people want. - It also has some utilities for working with RAID including RAID scanning. - It has clear instructions for how to turn it on/off without damaging the disks. - The box itself is stylish and not overly large Setup was a bit worse. The Quick Start guide is sort of like an IKEA instruction booklet - not the greatest but you can figure out what they want you to do. However the user interface was otherwise a little confusing, for example they have two separate iPhone apps in addition to the laptop app, the download page is a bit clunky, there aren't any downloads for recent Mac versions (you have to go with a several-year-old Mac version), etc. On the whole the software was not confidence-inspiring. But whatever, that didn't bother me too much - I just wanted to get Time Machine setup. As long as that works, I don't care about the rest. So I followed the instructions and it seemed like it was working. But then it just cut out and stopped. This happened several times. From Googling I got the idea to ping the NAS to see if it was connected, and sure enough, the problem seems to be that the NAS and the laptop can only connect intermittently. From the record of my pings, I can see that they are connected 5-10% of the time, and disconnected the rest. That's not a great ratio. The NAS is connected to my WiFi router by Ethernet. My laptop, WiFi router, and NAS are all in the same room. I purchased my WiFi router 2-3 years ago. During the time when my laptop cannot connect to the NAS, I can still browse web pages. That's particularly confusing because it means that there's no problem with my laptop's connection to the WiFi router, and the router and NAS are connected by Ethernet. I'm not sure what I'm missing. Unfortunately this seems to be a common problem with NAS routers, and I don't really know the solution. My old Apollo had a similar problem I think. However, I think that Buffalo should provide troubleshooting instructions for attempting to address these problems. If they can't fix this problem, I think they should just stop selling their product.