How to fix unresponsive console issue on EO-Lab
When you create a new virtual machine, the first thing you might want to do is to have a look at the console panel and check whether the instance has booted correctly.
After opening up the console in OpenStack you might encounter this error:
unresponsive grey screen
document icon in the down-right corner which informs about the issue on client side

In this case:
Check your firewall rules for port 6082 and assign “incoming” traffic the “allow” rule.