Remote Desktop Connection not allowing saved passwords

Your system administrator does not allow the use of saved credentials to logon to the remote computer
computername/ipadress because its identity is not fully verified. Please enter new credentials.
The logon attempt failed

Set the following GPOs:

Go to Local Computer Policy –> Computer Configuration –> Administrative Templates –> System –> Credentials Delegation
Double Click on “Allow Delegating Saved Credentials with NTLM-only Server Authentication”