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Old 12-08-2015, 08:24 PM   #1
kb2tfa
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AWS No Default Subnet.


When I create an instance (EC2) from the launch instance wizard, I get an error saying you have no default subnet. I have a default VPC, but I can't use it because of the no default subnet error on the instance wizard. I created another VPC from scratch with two subnets, and that is the only way for me to launch EC2 instances. I know very little about networking. The default VPC has one subnet. Any ideas why this is the way it is? I tried AWS forums, but they won't respond. They want me to sign up for the 50/month support plan. I'm willing to do the work and learn, I just don't know where to look for help.
 
Old 12-09-2015, 10:15 AM   #2
Habitual
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Quote:
Originally Posted by kb2tfa View Post
I just don't know where to look for help.
Their help is found at https://aws.amazon.com/documentation/
 
Old 12-09-2015, 10:25 PM   #3
kb2tfa
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Thank you but the documentation does me no good because I don't know what to look for in the documentation. The documentation is a big document.
 
Old 12-12-2015, 12:14 PM   #4
kb2tfa
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I fixed it. If you delete a default vpc, you cannot fix this. Amazon has to fix it. If you delete default subnets, you need to create 4 subnets, one for each AZ. Then you need to contact Amazon with your account number, the subnet id and AZ for each subnet, requesting that they mark it default. If not you cannot create any aws resources. You can create a vpc by scratch, and that will work. However, your default will not unless you get it fixed. Hope that helps someone else.
 
Old 12-12-2015, 04:31 PM   #5
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So, there's a 'default' VPC and it is allowed across all Available Zones?
 
Old 12-13-2015, 01:27 PM   #6
kb2tfa
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Originally Posted by Habitual View Post
So, there's a 'default' VPC and it is allowed across all Available Zones?
I'm not sure I understand the question. Yes there is a default VPC in multiple AZs.
 
  


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