Thank you for your message. Your post has been moved to a new thread.
Regarding the error, you need to make sure that the selected connection mode is allowed on the Host side. In order to do this, right click on the Host icon in the system tray, select Settings for Host -> Security -> Modes tab and make sure that the mode you want to use is UNchecked.
Direct connection is always a better choice because no mediation occurs and (in theory) the perceived speed and responsiveness should be better.
However, the Internet ID connection should work anyway except only rare occasions where the network environment on the Host side is extremely strict. Please, note that even with the Internet ID connection the Host should be able to communicate with our mediation servers on the Internet, that is - establish an outgoing connection at certain port. Oftentimes, especially in corporate environments, all outgoing ports are blocked except those used commonly, such as port 80 and 443.
I'm more than sure that if you set up your own mediation server, set it up to use port 443 and then point the Host in question at that mediation server and port - everything will work.
I might be mistaken however in that it's a port issue and not something else, in which case it's recommended to check this Knowledge Base article that might help to troubleshoot the issue.
Thank you for your suggestions. However, this one along with the other two posted recently (patch management and service desk) require shifting from pure remote access solution to a more general (and more expensive) IT management software. Although we do consider expanding in that direction at some point in the future, this may not be our immediate priority.