On an ideal night, I mount my rpi4 to my HEQ5 and operate it remotely from about 50ft away over wifi. I don't think this distance is unreasonable for an external wifi dongle with antenna (I'm using a Panda PAUO6 ). It seems that when the mount moves or when I just barely touch it, it loses the connection. To make it even more frustrating is that I have had nights where I don't haveto think about wifi. It worked flawlessly. For what it's worth, I live in a remote area so there is little interference outside of the mount itself.

Here is what I have tried:

1. Buying a new mesh point and placing it as close as possible to my setup
2. Used a different rpi4
3. Used different (admittedly crappier) wifi dongle
4. Using a USB extension cable
5. Used a powered USB hub
6. Use a dedicated power source for the rpi4 and hub (I usually use a DC hub)