macOS 11.4 breaks RDP (MS Remote Desktop) by causing constant reconnects

Question

Level 1

28 points

Hello,

After updating to macOS 11.4 on May 29th, connecting to Windows systems stopped working properly

Steps to recreate:

Repeats continuously , so completely unusable

replaced macOS 11.4 system using same network connection with macOS 10.3, it works fine
macOS 11.4 screensharing to macOS 11.3 works
continuous ping between systems is 1-2.5 ms, no network drops

Anyone else seeing this?

Thanks

MacBook Pro 15″, macOS 11.4

Posted on May 31, 2021 7:24 PM

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Answer 1

Level 10

85,296 points

No, but Remote Desktop is very sensitive to firewall ports.

You may need to specify the port for Remote Desktop when connecting to Windows devices next to the domain or IP address.

If you are using a proxy server, see if it works better without one in Apple menu -> System Preferences -> Network -> Advanced.

If you are using VPN, make sure the VPN software is updated for Big Sur.

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