What network configuration issues might lead to CloudFront 502 errors?

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Grade: Education Subject: Support
What network configuration issues might lead to CloudFront 502 errors?
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Network issues between CloudFront and your origin server can cause 502 errors. This could include firewalls blocking traffic, incorrect DNS resolution for the origin hostname, or network latency so high that CloudFront times out before receiving a valid response. Ensure your security groups and network ACLs allow inbound traffic from CloudFront's IP ranges.