Both of my rigs are connected directly to my router but I was planning on moving them to another room. Do you use a wifi usb stick, direct connection to modem or use an ethernet adapter that runs through your electrical wiring?
Others have had sucess with the ethernet over electrical wiring adapters and I thought I would give it a shot. I didn't go cheap on them and ended up sending them back to Amazon the next day. I have no idea why, but every time I plugged them in, my wifi security camera system starting going crazy. In the end, it wasn't worth it to me to spend the time screwing around with them. I'll admit, I didn't put much effort into trying to get them to work properly, because I kept thinking that I spent $100 on them when I could have just bought a 75ft cat6 cable for $20. Sure running the cable might take an hour or so if you have to drill multiple holes to get it where you want it, but it's one less thing to troubleshoot when you have issues.
I personally would not use wifi, but I'm sure some people are doing it and I'm sure it is working just fine for them. Hardwire is the way to go for anything, if you want stability, in my opinion.
I just ended up buying a 75ft cat6 cable and running it through the ceiling in my office (where my router is) to the room upstairs where my mining rigs go to live. I have it plugged into one of the four ports on my router and into a gigabit switch in my mining rig room.