Amazon EC2 SErver RDP Lockout

We are having a problem trying to login to particular Amazon EC2 Server through RDP

For no apparent reason we will get this message
Even though no other users are logged in

And the only resolution is to reboot the server.

Any ideas?  Where could I see what is causing this?

Larry Bristersr. DeveloperAsked:
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Sajid Shaik MSr. System AdminCommented:
what is the o/s on the machine... is it completely patches ?
Larry Bristersr. DeveloperAuthor Commented:
This is a Microsoft Windows Server 2016 Datacenter
Have the server's performance monitored using perfmon data collectors. It could well be, that it is running low on resources while in that error state.

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Larry Bristersr. DeveloperAuthor Commented:
CPU consistently at 5% and Memory at 15%

Like I said... baffling
How did you read that out? It needs to be read out automated, while in error state - not manually now.
Larry Bristersr. DeveloperAuthor Commented:
Read it in the Task Manager
Pop up performance monitor
Did you understand what I am suggesting? Have perfmon setup to monitor the system and create logs. When in error state, simply look at the time when that happens and restart the machine, afterwards look at the logs to see what load was on the server at that point in time when you couldn't connect.
Larry Bristersr. DeveloperAuthor Commented:
Seth SimmonsSr. Systems AdministratorCommented:
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

I have recommended this question be closed as follows:

-- McKnife (https:#a42503993)
-- McKnife (https:#a42504773)

If you feel this question should be closed differently, post an objection and the moderators will review all objections and close it as they feel fit. If no one objects, this question will be closed automatically the way described above.

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Windows Server 2016

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