Directus on AWS (EC2 behind ALB) not responding on Airtel mobile network but works on Jio/BSNL/WiFi

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Description:
Hi everyone,

I’ve hosted Directus on AWS with the following setup:

  • EC2 instance running Directus (Dockerized)

  • Application Load Balancer (ALB) in front

  • Domain mapped via Godaddy

  • HTTPS enabled (ACM certificate)

The application works perfectly on:

  • Jio mobile network

  • Jio broadband

  • BSNL

  • WiFi networks

However, it does not respond on Airtel mobile data. The request either times out or fails to load the site.

What I’ve checked so far:

  • Security groups allow required ports (80/443)

  • ALB health checks are passing

  • Directus container is running fine

  • DNS resolution looks correct

  • No obvious errors in ALB or EC2 logs

Question:
Has anyone faced carrier-specific blocking or routing issues (especially with Airtel in India) when using ALB/EC2? Appreciate any pointers :folded_hands:

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Hello @Amit_Patil switch your DNS to 1.1.1.1 and check. Supabase is also facing same issue on JIO ISP, you can red more about it here Supabase down on JIO ISP · Issue #43142 · supabase/supabase · GitHub