New Update for Mac gives Error 0x4

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I have the same problem. Yesterday I installed mac OS Sonoma, after installation, I cant connect to work PC via Microsoft Remote desktop app Version 10.9.2 (2147). I have error code 0x4. 

Same issue here, works fine on Windows 2016 servers, but not our legacy 2003 servers. I have had to turn off the auto app update in Mosyle and find an older version of RDP as a work around.

Same here. 0x4 since installing the 10.8.2 update.

This only seems to be giving me the error for an old XP Virtual Machine. Other more recent Windows OSes still connect just fine.