Understanding Salesforce CRM Connection Resets
Salesforce CRM (the core platform, not the commerce cloud variant) is hosted on Salesforce’s own infrastructure with Cloudflare as the CDN layer. The platform uses TLS 1.3 with ECH for all authenticated sessions including Sales Cloud, Service Cloud, and Marketing Cloud logins. When users access Salesforce CRM from macOS Safari on networks with SSL inspection, the ISP gateway resets the ECH-enabled ClientHello, causing the TLS handshake to fail.
Salesforce’s TLS configuration supports TLS 1.2 fallback, but Cloudflare’s edge policy requires ECH for TLS 1.3 and only offers TLS 1.2 fallback when explicitly signaled by the client. ISP gateways that strip the TLS 1.2 signal cause Cloudflare to assume TLS 1.3-only support, which fails.
Browser Integrity Sync on Salesforce’s Platform
Salesforce CRM uses browser integrity sync to prevent unauthorized access to CRM data, opportunity records, and customer information. When the TLS handshake is interrupted, the integrity sync fails, and Salesforce’s security layer blocks the user’s session, requiring re-authentication with a complete TLS handshake.
Fixing Salesforce CRM Connection Resets
Using Chrome with TLS 1.2 Forced
Download Chrome → modify the shortcut target to include --tls-max-version=1.2. Launch Chrome and access Salesforce CRM. TLS 1.2 does not require ECH, so the handshake completes through ISP gateways that block ECH.
Disabling SSL Inspection for Salesforce Domains
Configure your network proxy to bypass Salesforce domains. In macOS, navigate to System Settings → Network → Wi-Fi → Details → Proxy. Add *.salesforce.com, *.force.com to the bypass list.
Clearing Salesforce Browser Data
Open Safari → Clear History → All History. Then Settings → Privacy → Manage Website Data → remove all Salesforce entries. Restart Safari and access the CRM with a fresh TLS session.
Call to Action
Use the webs.ninja network lab to verify connectivity to Salesforce CRM endpoints. The diagnostic identifies whether the reset is caused by your ISP’s gateway, a Cloudflare edge node failure, or Salesforce’s platform infrastructure, directing the fix to the correct layer.