Windows 10: Protocol Error when connecting MacBook Sequoia and iPad via Remote Desktop/Windows App for Mac

My MacBook and iPad have both worked great using Remote Desktop for Mac - on various Mac devices for years - now Windows Update I updated for Mac - Host is Windows 10 Pro - until last week. Now neither the MacBook or iPad works - with various error messages, mostly "Your session ended because of a protocol error. Error code: 0x100d". I have reinstalled Windows Update, checked IP connection, tried adding a different user, various Terminal commands suggested by Apple support without effect.I have Sequoia 15.3.2 on the MacBook Apple M2 purchased in January 2025, updated around the tim

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remote desktop protocol error

Good day, i have been using remote desktop regularly but now i cannot connect as on the last step, i get "Protocol error" log in again and without success.

Thanks

 

Windows 10 remote desktop connection with Ipad Pro

Hello,

Please follow steps mentioned here and let us know if you still get error at any step:

[How To] Create Remote Desktop Connection To Windows From Mac

Hope this helps, Good luck!

 

Error: 0x204 when trying to connect to server using Microsoft remote desktop app on Mac

Hello Carlos,



Thank you for writing to Microsoft Community Forums.



I understand that you are receiving the error 0x204 when trying to connect to the server using the Microsoft remote desktop app for Mac.



You can try the steps mentioned below and check if that helps.

1. Quit the remote desktop program on Mac and hold the option key.
   
2. Now click on the Go menu to enable the library and select the user’s that.
   
3. Now navigate into containers folder and copy com.microsoft.rdc.macos and com.microsoft.rdc.mac and paste it on a different location.
   
4. Now go back to the user’s library and open the group containers folder
   
5. Copy UBF8T346G9.com.microsoft.rdc and paste it on a different location.
   
6. Restart the PC.
   

Also, you can try resetting the network settings for your Mac and see if that helps. Refer the article by Apple on

How to use network locations on your Mac.



However, as the issue is related to connecting to server using remote desktop app, I suggest you to post your issue on

TechNet forum as we have experts who have more knowledge about connecting to server.



Hope it helps.



Regards,

Prakhar Khare

Microsoft Community – Moderator