It appears that there is a new version (V10.8.1 (2039) released Dec 15th. You may be able to upgrade through the Apple App store.
If not - the website above lists previous versions so you should be able to download and install one that works.
0X104 error after 10.8.0 update on mac
Garrett Mathis
6
Reputation points
After update of 10.8.0 I receive an error message of 0X104 unable to connect. Other Macs that are still running 10.7.10 have no issues connecting. Please send me instructions on how to roll back the software to 10.7.10 for Mac OS.
Windows for business | Windows Client for IT Pros | User experience | Remote desktop services and terminal services
5,099 questions
3 answers
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JB Panda 6 Reputation points
2022-12-20T21:31:51.19+00:00 -
Alexander Reichert 1 Reputation point
2022-12-28T00:37:11.33+00:00 Had the same issue. The last version that works is 10.7.9 Build 2011. Everything that was released after that is not working anymore.
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Doc Fred 0 Reputation points
2023-02-24T09:22:41.19+00:00 Same issue here - this solved the problem:
https://macsecurity.net/view/495-fix-error-code-0x204-remote-desktop-mac
Method 5: Remove Remote Desktop temp folder from your Mac