Hey there!
So I’m trying to connect my Trinus to Astro print, now it can see that a printer is connected but when I press connect it tries for a bit and then just says connection error could not connect to printer, is anyone able to help me out as to why? Not sure what other info you might need but let me know and I can provide it! Thank you in advance!
Can you try experimenting with different baud rates in settings?
Then attempt to reconnect.
Also, what Firmware?
Well I got it!!
Baud has to be 115200.
And the key step is to turn the printer on first with it poured plugged into the pi and then after about 20 seconds turn the pi on (power from the wall) and it worked 100%
Excellent news! 
Keep us updated on your experience using Astroprint with this Printer!