SSH to EC2 works temporarily, then fails permanently

Question

I've been trying to set up a sandbox Linux EC2 instance, but I am having trouble connecting via SSH.  I've reviewed all of the troubleshooting pages and checked security group inbound settings, VPC gateway/subnet/routes/ACL settings, and I can't figure out what is wrong.  
  
The weird part is this: if I stop the instance, then start it back up, I can temporarily connect via SSH right away (i.e. as soon as the instance appears as RUNNING), but only for a limited time.  Within minutes (around the time that the status checks have completed running), SSH ceases to work (I receive a RESOURCE TEMPORARILY UNAVAILABLE message).  
  
Is this a known issue?  Could it be an issue with my account?  
  
Edited by: bbbill on Feb 15, 2019 4:47 PM

Answer

Hello,  
  
Please note that the reason why you are unable to connect to your instance is caused by an administrative issue with your account. I have created an internal ticket for our customer service team to remedy this situation. I will inform you as soon as I receive an update.  
  
Regards,  
awstomas

Answer

Hello,  
  
I would like to inform you that the issue with your account has now been resolved. You should now be able to connect to your instances. Please let me know if you experience any further issues.  
  
Regards,  
awstomas

SSH to EC2 works temporarily, then fails permanently

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