Problem in Purchasing Dedicated Host Reservation

Question

I followed the steps here: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/how-dedicated-hosts-work.html#purchasing-dedicated-host-reservations on how to purchase dedicated host reservations, but on the last step (Review and Purchase), after clicking 'purchase' it shows:

*"An error occurred when trying to purchase a Dedicated Host Reservation: InternalError: An internal error has occurred"*

Then when I looked into the AWS server error codes, it just says there that Internal Error means that I have to retry the request, which I did for 2 weeks now and the same thing happens every time.

Answer

Hi,

First make sure you have permission to purchase reserved instances.

After that, this is what I have found regarding the issue you are having:

`**Resolution**
Here are some common reasons why you might not see the RIs that you're looking for:

1. **AWS can't guarantee the capacity that you're looking for**. Purchase capacity in a different Availability Zone in the same Region instead. Also, be sure that the RI that you're trying to purchase is for an instance configuration that AWS offers.

2. **You've reached your limit for RIs in a Region.** For information about viewing and increasing your RI limit, see Amazon EC2 service quotas.

3. **You're purchasing a No Upfront RI with a new AWS account**. AWS restricts the ability for new accounts to purchase No Upfront RIs. The restriction on purchasing No Upfront RIs is lifted automatically, usually after about a month. For more information, see Reserved Instances payment options.

AWS Support can't manually update these limits or add No Upfront RIs to your account on your behalf.

Note: AWS Support can't purchase RIs on your behalf.`

https://repost.aws/knowledge-center/ec2-ri-buy-error

Let me know if this helps.

Problem in Purchasing Dedicated Host Reservation

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