Solved Remote Desktop connection - An Authentication Error has occurred. One or more of the parameters passed to the function was invalid.

I setup test machines with Windows 10 22H2, and Windows 11 23H2 and 24H2. I can RDP into the other two from each one. I've tried this with the Remote Desktop session host in its default config, with security set to Negotiate, and with security set to SSL. I disabled TLS 1.0 on the 24H2 machine, and it still works.

pseymour said:

10 22H2 supports TLS 1.2 by default.

Edit: Seems like they both support these cipher suites for TLS 1.2 by default, in priority order, and then they differ after that. Have you folks messed with the available cipher suites for 1.2?

Code:

TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256

Click to expand...

I ran Get-TlsCipherSuite and I do see them listed. I have a feeling because I have only ssl 3.0 entry listed in the protocols, it never default to 1.2.

The keys don't matter for protocols that are enabled by default. For example, I don't have keys at all under Protocols. I'm just using the default set for 25H2.