Browser trust warning appears only on mobile devices

Minimal guidance for messy support realities.

Scenario

Desktop browsers trust the site, but mobile users still receive certificate warnings.

Recommended Resolution Path

  1. Inspect the full served chain and supported ciphers for mobile compatibility.
  2. Check whether an intermediate certificate is missing from the server bundle.
  3. Test on multiple mobile platforms to separate one-client behavior from a general chain issue.
  4. Correct the chain at the server rather than asking users to bypass warnings.

Technician Notes

Confirm the result, document the root cause, and record any preventative action worth standardizing.