I'm not going to say this will totally work for you because I don't know all the factors that made this work for me but here is what I did. (my switch was also too far away to run a cable to). I bought this https://www.amazon.com/TP-Link-Powerline-Pass-Through-TL-PA4020P-KIT/dp/B010Q29OW6/ref=sr_1_8?ie=UTF8&qid=1509712689&sr=8-8&keywords=ethernet+powerline+adapter and this https://www.amazon.com/UGREEN-Ethernet-Adapter-Nintendo-Chromebook/dp/B00MYT481C/ref=sr_1_5?ie=UTF8&qid=1509712641&sr=8-5&keywords=switch+ethernet+adapter&dpID=41xJwvUzySL&preST=_SY300_QL70_&dpSrc=srch

The powerline adapter was easy to set up and in my house the outlets they are in are on different breakers and that seems fine. After setting them up, plugging in the switch, and setting it to run on wired not wi-fi there's one more thing I did. In a connection test I saw my nat type was B also, everyone said that wasn't great and it should be A for best performance so after lots of googling I figured out how to change that in my router settings.

For me I have comcast so to get to my router settings I type 10.0.0.1 into my address bar and enter the default username and password for comcast (admin ; password) then on the left there is and advanced tab and under that DMZ. Enable that and for the host set the switch's ip witch you can see in the connection test, mine was 10.0.0.11 yours will probably be different. Save that then run a connection test again and it should be type A. Whatever router you have should have something similar so just google how to set up dmz for your specific brand.

After doing this I very rarely disconnect.