If you were just looking for range in the Ubiquiti Unifi line, the UAP AC LR might have been the better option for a wireless AP with the USG3 (wired router; can be wall mounted). Maybe even a nanoHD wireless AP would suffice. Not sure what you mean by the USG3 being underpowered as it can...
This Ubiquiti Unifi option is missing a switch (not sure if you have a switch already). Managed switch if you were going to set up separate vlans. I think the nanoHD uses a Mediatek wireless chip. Also, enabling the IPS (Intrusion Prevention System) on the USG will lower maximum throughput...
Have 2 R7000's, one as the router and the other as a bridge. With both updated to firmware V1.0.2.120_1.0.17, the bridge will not connect if it is booted/turned on more than 8 ft. away from the router. The 5 GHz light is lit but solid.
If I boot/turn on the bridge 8 ft. or less from the...