How i can remove Windows terminal server proxy?

I am trying to access Terminal Server Session from I'VE.
I made it through;
Navigate to My computer > Properties > Remote > Enable the Network Level Authentication.
After enabling this, I get the following error message:
"An internal state error has occurred. The remote session will be disconnected.
Your local computer might be low on memory.
Close some programs, and then try connecting to the remote computer again."
I need some help to resolve this matter.
Kindly, suggest for me what should I do.
