Since upgrading to 9.0.7 last week, I can't open any RDP sessions in embedded/tabbed mode. They open fine in external mode. The error message is the standard "Remote Desktop can't connect to the remote computer for one of these reasons...." as if the remote machine is not available on the network.
Running Standard Edition on Windows 8.1....no issues prior to 9.0.7.
Could you verify if your anti-virus hasn't blocked RDM. This specific scenario just happened last week with a Norton anti-virus.
David Hervieux
That was it. Norton was blocking it in the firewall settings. I noticed a Norton update ran last week as well...something must have toggled it off. Thanks!