I suddenly can’t connect to my astrobox from my PC. I get a "server not found message using Firefox. However I can connect from my iPad.
Are they in the same exact network? Also are you using their IP address or .local?
Yes, they are in the same network and I have been connecting through the PC successfully until today. I am using .local
Using the device that works, go to the settings icon then internet and note the IP address. Are you able to reach it via IP address?
Yes I was able to reach it via the IP address. I then tried via “local” again and could connect also?
Don’t know whether this appropriate or I should open another incident but I can video stream from my PC but when I try from my iPad I get the following message "Unable to start the WEBRTC Session when I try to start streaming.
Sometimes the bonjour system caches the address and then the DNS server assigned a new one to the box and it’s not updated.
Regarding the question about video. It’s the expected behaviour for now 
More info here: https://astroprint.zendesk.com/hc/en-us/articles/209139946-Browser-support-for-AstroBox-Live-Streaming