EC2 instance connection issue

I have created a free trial EC2 instance. I am able to connect first time and install few softwares. I am trying to login this morning and i am getting below error. I have tried from my personal machine and their is no network restriction.

[Window Title] Remote Desktop Connection

[Content] Your Remote Desktop Services session has ended, possibly for one of the following reasons:

The administrator has ended the session. An error occurred while the connection was being established. A network problem occurred.

For help solving the problem, see "Remote Desktop" in Help and Support.

[V] See details [OK]

[Expanded Information] Error code: 0x3 Extended error code: 0x12 Timestamp (UTC): 06/14/23 02:51:55 PM

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