The fact that you can no longer RDP into the system leads me to believe that the system is running out of connections. Try running through the following article and see if it helps:
Let me know.
Chris Foley | Support Specialist
SolarWinds | IT Management, Inspired By You
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sorry for my very late answer - but I just opened the post for my boss and forwarded your answer to him, to try it ...
'we' are evaluating it and I'll give you a response when he is totally satisfied actually he means, it looks like that it works ...