OKKKKKKK me too, what's the solution??? I hate these forums these companies start because they're too cheap to have acutal customer service. And where is the answer to everyone's issue??
I deleted the affected host from the host computer and then re-added it and now it shows online. Very strange for sure but its working again so must be a bug in the software and removing and adding the computer fixed it.
I have just started having this problem in the past couple of weeks. I've upgraded to the latest versions and still have the issue. Any suggestions?