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Unable to Connect to EC2 instance after upgrading from Windows Server 2012 r2 to 2016

0

How do we resolve an OS level network issue in our EC2 instance? We can see from instance snapshot that the server has booted to windows and the network icon in bottom right has a red x on it. Both inbound/outbound secgroup verified to be allowed and unable to connect thru fleet manager. Prior upgrade, we can remote via RDP and thru fleet manager/session manager.

Screenshot of the actual status of the server for reference. Enter image description here

Topics
Compute
Tags
Amazon EC2Windows
Language
English
XYV
asked 6 months ago388 views
2 Answers
0

Hello.

Have you confirmed that SSM Agent is running after updating the OS?
Also, if it is running, check the SSM Agent log to see if any errors are output that can help identify the cause.
https://docs.aws.amazon.com/systems-manager/latest/userguide/sysman-agent-logs.html

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Riku_Kobayashi
answered 6 months ago
0

SSM went erratic also after the upgrade reboot. We've retried the upgrade process for 5times. same result. Uninstalled telnet and AV. Still the same result.Enter image description here

XYV
answered 6 months ago

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