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I have my Auto Scaling Group configured like so: enter image description here enter image description here

My Load balancer, when it registers an instance, fails since the health check fails while the instance is still loading. enter image description here

For what it's worth, my health check is as follows: enter image description here

I've added the "web-master" instance myself, not part of the auto scale, since what normally happens is that the registering instance fails to add itself to the load balancer, terminates and a new one pops up. This happens countless times until I manually intervene. What am I doing wrong? Is there any way to delay the ELB Health check or at least have it wait till the instance is fully registered?

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An instance shouldn't register until its passed its availability tests. Could it be that its your applications spin up time that's the issue, not the instance.

I guess my question is, is your application set up on the port your pinging? I have a lightweight 'healthcheck' app in iis for heathchecks to get around the 'ping pong' effect.

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