Why Does a Domain Work on One Network but Not Another?

Resolvers may hold different cached answers, or split DNS, IPv6, VPN routing, and local filtering may send users to different endpoints.

Checks to make

Compare authoritative records with answers from affected networks, including A, AAAA, and CNAME. Check TTL and resolver cache, VPN state, local hosts entries, and certificate coverage. Avoid repeated record edits while caches are still converging.

When to get help

DNS support can trace resolution paths and plan controlled record changes. Informatix Systems can assess the symptoms, evidence, and next steps. Contact Informatix Systems to discuss this issue.