Hi all, can you please check the instance type. This was caused by chosing the wrong instance type. Vm-series PAYG model in AWS is a VM-300 model, if you do not allocate the right memory and number of CPUs, then, it wont be able to register itself to the license server. I have changed my instance type to m4.xlarge, the everything is working as expected. I can see the instance now is licensed properly (see the below screenshot). To find out the minimum requirements for VM-300, go to the following link https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClDCCA0 On how to change EC2 instance type, go to the following link https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-resize.html
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