Authorize.net request failed
Server-side Authorize.net helper could not complete an API request (network error, unexpected response, or gateway-level failure without a clearer mapped message).
Why this happens
authorize-net-api returns this when the HTTP call fails or the result is not OK. Distinct from Authorize.net is not configured (missing keys) and from card declines shown after a successful API round-trip.
Diagnose and fix
1. Confirm credentials and sandbox/live mode match the Authorize.net merchant account.
2. Check app logs for the underlying Authorize.net error text.
3. Verify outbound HTTPS from the server to Authorize.net is allowed.
4. Retry; see Common payment failures for member-facing decline patterns.