You might also try Powerline (Ethernet over Power) to present an Ethernet port where your Hopper 3 is located. I've used the following to good success over the years:
I had two of these, TP link gigabit version. I inserted them into the path. One at the Hopper and one at the router connected to the ethernet port.
They pair up and with a laptop the through put isn't pretty. I speedtest on the ethernet at the router and get the 100mbit down and 10+ or so up that Verizon says I get with this class of product. Speedtest at the hopper end of the "extended powerline ethernet" is actually about 100mbit download but only about 5mbit uplink. That is kinda what I expect when the TPlinks are on separate circuits. (There is no way to combine them).
The uplink speed just isn't enough to keep up with Dish Anywhere. I connected my usual tablet and started watching a DVR recording and a live channel and both picture quality was horrible. It looked like the old days when the app would allow a choice between viewing resolution - it looks like the Dish Anywhere app used a lower resolution because the speed wasn't there. The picture was blurry and "fine print" (like on the TV drug ads) was unreadable...
I also tried a wifi extender. This extender (the 3200 model from Verizon) doesn't work with wifi between the extender and router, but it will backaul over ethernet if connected so I used the Powerline. The result was the same. The Hopper connected to the WiFi on the extender, but the actual speed of the ethernet uplink had same results. Signal strength was impressive since they were sitting right next to each other.
The good part is that since the download ("cloud to router" and "router through powerline" to Hopper) is the 100mbit I get from the raw 5g system, the stuff that was once not very robust (ie, the Dish stuff that is now streamed instead of received over satellite, like the new MeTV) is more stable.
I'm thinking of seeking an actual Wifi extender that will interoperate with the 5g router (the one that Verizon supports is only available with the next up speed/service class but that is not available at my location, that's what I meant by Verizon supplies it...)
The funny thing is that this extender is at the dark end of the house and over a two hour period, most of the 5G and all of the 2.4G devices had migrated to the extender. Devices other than the Hopper don't work in this location. I actually switch my phone off WiFi at night becausse of the timeouts. With the extender everything worked... Uploads would suck since the upstream backhaul sucks but downloads worked OK.
I'll keep poking at this...