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How to contact Amazon Web Services technical support?

- Support Center: https://console.aws.amazon.com/support/

- Official website: https://aws.amazon.com/local/africa/

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- X: https://x.com/awscloud

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EC2 instance connectivity failures

- Check the instance's security group rules to ensure appropriate ports are open

- Verify the network access control lists (NACLs) aren't blocking traffic

- Examine the instance's status checks in the AWS management console

- Confirm the instance has a public IP address if external access is required

- Review the route tables associated with the instance's subnet

S3 bucket access and permission errors

- Validate the bucket policy doesn't conflict with IAM user permissions

- Check for any explicit denies in the bucket's access control settings

- Ensure the requesting user or service has the necessary IAM policies attached

- Verify the bucket's region matches the region specified in API calls

- Confirm the bucket name doesn't contain invalid characters or formatting

RDS database performance degradation

- Monitor the database's CloudWatch metrics for CPU, memory, and I/O patterns

- Check for long-running queries using the Performance Insights dashboard

- Review the database parameter group settings for optimal configuration

- Consider upgrading the instance class if resource constraints are identified

- Examine the storage auto-scaling settings and free space availability

Lambda function execution failures

- Review the function's execution logs in CloudWatch for error details

- Check the function's IAM execution role has necessary permissions

- Verify the function's timeout and memory settings are appropriate

- Ensure any environment variables are correctly configured

- Confirm the function's code package doesn't exceed size limitations

CloudFront distribution content delivery issues

- Check the distribution's status in the AWS console for any deployment delays

- Verify the origin server is responding correctly and returning proper HTTP codes

- Examine the cache behavior settings and TTL configurations

- Review any geographic restrictions or country blocking settings

- Confirm the SSL/TLS certificate is valid and properly associated

IAM permission and authentication problems

- Validate the user or role has the appropriate permission policies attached

- Check for any service control policies (SCPs) that might override permissions

- Verify multi-factor authentication isn't preventing access when required

- Review the condition keys in policies that might restrict access based on context

- Ensure temporary credentials haven't expired for programmatic access

VPC networking and routing complications

- Confirm the internet gateway is attached to the VPC for external connectivity

- Check the route tables for proper routing to intended destinations

- Verify the subnet's network ACLs allow necessary inbound and outbound traffic

- Ensure any NAT gateways or instances are functioning correctly

- Review VPN connection status and configuration if hybrid networking is used