The "401 - Unauthorized" error typically means that the request lacks valid authentication credentials for the target resource. Here are the steps to resolve this issue when trying to access metadata from an EC2 instance:

1. Check IAM Role: Ensure that the EC2 instance has an IAM role attached to it that allows access to the metadata. If not, you will need to attach an appropriate IAM role to the EC2 instance.

2. Check IAM Policy: Verify that the IAM policy attached to the role has the necessary permissions to access the metadata. If not, you will need to modify the IAM policy to include these permissions.

3. Check Security Groups: Ensure that the security group associated with the EC2 instance allows outbound connections. If not, you will need to modify the security group rules to allow outbound connections.

4. Check Network ACLs: Verify that the network access control list (ACL) associated with the subnet of the EC2 instance allows outbound connections. If not, you will need to modify the network ACL to allow outbound connections.

5. Retry Access: After making the necessary changes, try to access the metadata again. If you still encounter the "401 - Unauthorized" error, there may be other issues at play, and you should contact AWS Support for further assistance.

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The "401 - Unauthorized" error typically means that the request lacks valid authentication credentials for the target resource. Here are the steps to resolve this issue when trying to access metadata from an EC2 instance:

1. Check IAM Role: Ensure that the EC2 instance has an IAM role attached to it that allows access to the metadata. If not, you will need to attach an appropriate IAM role to the EC2 instance.

2. Check IAM Policy: Verify that the IAM policy attached to the role has the necessary permissions to access the metadata. If not, you will need to modify the IAM policy to include these permissions.

3. Check Security Groups: Ensure that the security group associated with the EC2 instance allows outbound connections. If not, you will need to modify the security group rules to allow outbound connections.

4. Check Network ACLs: Verify that the network access control list (ACL) associated with the subnet of the EC2 instance allows outbound connections. If not, you will need to modify the network ACL to allow outbound connections.

5. Retry Access: After making the necessary changes, try to access the metadata again. If you still encounter the "401 - Unauthorized" error, there may be other issues at play, and you should contact AWS Support for further assistance.

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The "401 - Unauthorized" error typically means that the request lacks valid authentication credentials for the target resource. Here are the steps to resolve this issue when trying to access metadata from an EC2 instance:

1. Check IAM Role: Ensure that the EC2 instance has an IAM role attached to it that allows access to the metadata. If not, you will need to attach an appropriate IAM role to the EC2 instance.

2. Check IAM Policy: Verify that the IAM policy attached to the role has the necessary permissions to access the metadata. If not, you will need to modify the IAM policy to include these permissions.

3. Check Security Groups: Ensure that the security group associated with the EC2 instance allows outbound connections. If not, you will need to modify the security group rules to allow outbound connections.

4. Check Network ACLs: Verify that the network access control list (ACL) associated with the subnet of the EC2 instance allows outbound connections. If not, you will need to modify the network ACL to allow outbound connections.

5. Retry Access: After making the necessary changes, try to access the metadata again. If you still encounter the "401 - Unauthorized" error, there may be other issues at play, and you should contact AWS Support for further assistance.

How to resolve "401 - Unauthorized" when trying to access metadata from ec2 instance?

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