I am a PC person away from Macs since the old MacPlus days before the Nix versions so it is all 'by the book' for me. I do not know any way to troubleshoot further with Mac. I believe this fails in software before any action passes down through the layers. Mac os x 10.6.8 free download - R for Mac OS X, Apple Mac OS X Mavericks, Mac OS X Server Update, and many more programs. I do not see any failuresĬhecking the network utilities on Mac for netstats does not indicate any opening of a connection. User Agent: Mozilla/5.0 (Macintosh Intel Mac OS X 1068) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/.112 Safari/537.36 See also Using Thunderbird with IMAP to Create Backup. Mac hesitates with same 'Opening remote port' and then returns 0x204 Checking my router connections while mac is trying to connect I do not see any attempts to connect to the windows computer at the port. Most recent Microsoft RDP 10 available from the iTunes store.Ĭonnection tested using a Windows 10 computer from outside the domain same as the Mac uses. Same High Sierra slightly higher incremental version number than mentioned here. This is a simple RDP to a PAT router forward into a Windows 7 Pro system at the specified port. Not using gateway as it appears some who suggest they have resolved same error message in gateway management. I am interested in whether Luca has resolved this issue.