Hello,
I’m exclusively using the setup you mention (with one addition):
From my experience, the above setup is incredibly reliable. The PC connects promptly after boot, and the connection remains stable, with low latency and an excellent WiFi range. Additionally, the entire setup is portable.
Using Mount’s Build-In WiFi
Initially, I used my mount’s WiFi network (iOptron GEM28). However, the disconnects were frequent and subsequent reconnects were slow. There was a high network latency which caused the UI to “freeze” or feel laggy at best.
I won’t recommend it.
Using a Separate Router
After I switched to a mini router, all issues went away. The TP-Link N300 is amazing:
It fits within a small palm and weights nothing.
Strong signal range (30-50 meters)
USB-powered (cable included)
Rock-solid connection, zero latency issues
Low cost ~20 EUR
Here a couple of things:
Setup the Windows App to connect using an IP. I had trouble connecting using PC’s name.
Configure the router to assign a specific IP address to the PC. Otherwise, every time the PC joins the network, it might receive a different IP address. In such cases, you’ll need to look up the new IP address and update the connection information within the Windows App, which is inconvenient.
Install WifiMan. In case of trouble, scan the network and check if the PC is connected and what its IP is.
Consider powering the router from a separate source. I noticed longer initial connection times when powering from PC USB.
Blue/Black Screen of Death (BSOD)
Remote desktop requires running services. If Windows crashes (BSOD), you can't connect—and with no monitor, you won't know why.
One time I went to a dark site. Mid-session I fiddled with the task bar icons and suddenly lost connection. After an hour spent in fruitless restarts, I packed up and took the 1.5 hour drive back home. When I plugged the PC to a monitor, I found that I’ve accidentally turned off the WiFi. I facepalmed and turned it back on. With a monitor, I'd have spotted it instantly.
The good news is that starting with iPadOS 17, one can use an iPad as an external screen. Since then, I bring a mini keyboard and a mouse to dark sites. It works at home, but I’m yet to need it on the field.
Useful accessories
I hope this helps. Let me know if you have more questions.
Clear skies
Edit: Added links to the accessories I use.