I haven't seen this error before and I also cannot reproduce it with my test machines. Can you provide more details on how to reproduce it. Do I need a specific mac OS version, for example?
I just did some tests with Big Sur and for me it's working as expected. When do you see this issue? Right away from the start or during a remote session?
We just released a new version of Royal TS. Can you update and see if the issue is resolved?
wow update seems to have fixed it.
one more question.
i tried on the mac (big sur). i can connect direct via vnc to the other mac. same with windows.
but if i am remote and use the royal server gateway, windows works fine with the new update. Mac (check for updates none available) keeps saying "an error occurred while opening tunnel: username or password is incorrect".
i dont see any logs on MAC so its hard to troubleshoot since windows works and i know the username and password is correct.
glad the update has fixed your issue.
Regarding the Royal TSX related problem, please post in the Royal TSX (for macOS) forum or open a dedicated support ticket, so that our mac Team can look at the issue.