I checked the Whole Home screen from the H3 for my Joey 3 that is hardwired and I get 1305 errors on. Here are the numbers
639 Receive Mbps 639
639 Send Mbps 639
0 Running Receive Error 0
0 Running Send Error 0
-8 Receive Signal Strength -12
39 Signal-To-Noise-Ratio 40
Do these indicate any issues? I thought the negative numbers for Signal Strength looked odd but don't know what they are supposed to be. I also get stuttering audio when I skip forward and have to either skip back or skip ahead again to get the audio right again.
Those all look solid to me, the max link is 639Mbps, no errors, the negative numbers are signal strength in dBm, which means the closer to 0 the better. SNR or signal to noise ratio, as the name implies, is the amount of dBm between the noise floor and signal strength, so higher is better (the receiver will only show up to 40).
My numbers from my primary Hopper to my 4K Joey are 639, 0, 0, -14, 39 and to my secondary Hopper are 639, 0, 0, -19, 39. In both cases my signal is lower than yours (the numbers might be bigger, but remember, they are negative so closer to 0 is better) and I have not gotten complaints from the family.