Understanding Walmart DSV Portal Connection Resets
Walmart’s Direct Store Delivery (DSV) vendor portal is hosted on Microsoft’s Azure cloud with Azure CDN fronting Cloudflare. The portal uses TLS 1.3 with ECH for all authenticated sessions. When vendors access the DSV portal from macOS Safari on networks with SSL inspection, the ISP gateway resets the ECH-enabled ClientHello, causing the TLS handshake to fail.
Azure’s CDN configuration supports TLS 1.2 fallback, but Cloudflare’s current security policy only offers TLS 1.2 fallback when the client explicitly signals TLS 1.2 support in the ClientHello. Some ISP gateways strip this signal, causing Cloudflare to assume TLS 1.3-only support, which then fails due to ECH incompatibility.
Browser Integrity Sync on Azure-Cloudflare Dual Layer
Walmart’s DSV portal uses browser integrity sync across the Azure-Cloudflare dual layer. When the TLS handshake is interrupted at the ISP gateway, the integrity sync fails at the Cloudflare layer, and Azure’s backend interprets the failure as a session security event, blocking the vendor’s access.
Fixing Walmart DSV Portal Connection Resets
Using Microsoft Edge Instead of Safari
Microsoft Edge uses a different TLS stack that may negotiate TLS 1.2 fallback more effectively than Safari. Download Microsoft Edge from the official Microsoft website and access the DSV portal in Edge — if the portal loads, the issue is Safari’s TLS 1.3 enforcement specifically.
Switching DNS to Azure DNS
Navigate to System Settings → Network → Wi-Fi → Details → DNS. Set DNS servers to 13.107.42.14 and 13.107.43.20 (Microsoft DNS). Azure DNS resolves Walmart’s CDN endpoints to the nearest healthy edge node with the lowest latency for your location.
Using VPN with US Endpoints
Walmart’s DSV portal is optimized for US-based connections. Use a VPN with US endpoints to route your traffic through American ISP infrastructure that supports TLS 1.3 with ECH, bypassing ISP gateways in the vendor’s region that do not support ECH.
Call to Action
Use the webs.ninja network lab to verify connectivity to Walmart DSV portal endpoints. The diagnostic identifies whether the reset is caused by the ISP gateway, a Cloudflare edge node failure, or Walmart’s Azure infrastructure, directing the fix to the correct layer.