Hey folks, if you know what is good for you, do not apply this patch yet. KB4103723 protects against a CredSSP vulnerability that has not yet been compromised. However, it will break lots of things in your system, including RDP and Hyper-V connections. Errors will include CredSSP errors when trying to connect via RDP (or Hyper-V Manager, or Failover Cluster Manager, or SCVMM).
Remote Computer: This could be due to CredSSP encryption oracle remediation.