I’m not the only guy buying these - whats up?
Brand new RB133 and R52H units - one rb52H per RB133 / 24v power supply on bench where all equipment gets setup (no problem with environment / power etc)
Everything goes fine until I go to wireless in winbox then double click wlan1 - winbox goes away - all units - every time.
Ver 2.9.46 & 2.9.48 both
Help 
These units were replacing other gear gone bad in a pinch… I sent info and files to support as well.
Scott
I needed to update this post…
The strangest thing, I left the RB133 running while I went out for a while, came back, tried again just for fun and I was able to configure wlan1 without winbox closing. Tried the next one, it worked, and they all worked.
This was really odd, if I were you I wouldn’t believe me Any way, I’m guessing it was a computer software malfunction causing winbox to close and not MT related. I had adobe pdf software locked up at the same time and killed it from the tasks manager, firefox reloaded and after that its all been happy.
I’m glad the stuff is working. 
Scott