What does Windows error code 7010 (ERROR_CTX_INVALID_MODEMNAME) mean?

 
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ERROR_CTX_MODEM_INF_NOT_FOUND ERROR_CTX_MODEM_RESPONSE_ERROR

ERROR_CTX_INVALID_MODEMNAME

The modem name was not found in MODEM.INF.

The native value for ERROR_CTX_INVALID_MODEMNAME is 7010 (0x00001B62). Preserve this result immediately after the failing Windows call because later logging, cleanup, LDAP, RPC, or file operations can replace the last-error value.

This result belongs to legacy Remote Desktop Services and Terminal Services session handling. A diagnosis of it must connect the condition to the producing API, current state, object identity, and first lower-level diagnostic.

Where the result appears

  • processing legacy Remote Desktop modem-name lookup.
  • applying a user or server configuration that enables the relevant legacy feature.
  • handling a session transition or device response in the Terminal Services stack.
  • diagnosing a wrapper that translates a WTS or connection result into Win32 form.

State boundary to prove

This result applies to legacy Remote Desktop modem-name lookup and does not by itself prove that the entire server, directory, disk, session, or application is unavailable. The state boundary to prove for this Win32 error is whether the configured modem name exactly matches an entry available to the Terminal Services callback component. Use configured modem name, enumerated modem devices and driver versions, and MODEM.INF entries as independent evidence. When evidence for this Win32 error disagrees, preserve timestamps and investigate the transition instead of selecting the most convenient value.

Likely causes

  • the modem was renamed or removed.
  • configuration refers to a model not present in MODEM.INF.
  • driver migration changed the friendly name.
  • configuration was copied from another server.

Diagnostic sequence

  1. capture error 7010 immediately at the API boundary and record the operation that was attempted.
  2. identify the exact owner of legacy Remote Desktop modem-name lookup, including object generation, server, path, session, replica, or client context.
  3. collect configured modem name before restarting a service or changing configuration.
  4. compare enumerated modem devices and driver versions with the documented or observed precondition.
  5. correlate MODEM.INF entries with TerminalServices operational logs, session and user-configuration records, device or modem diagnostics, and the caller’s connection trace.
  6. determine whether side effects occurred and verify recovery after changing one responsible condition.

Evidence to collect

  • configured modem name.
  • enumerated modem devices and driver versions.
  • MODEM.INF entries.
  • callback policy source.

Correlate it with TerminalServices operational logs, session and user-configuration records, device or modem diagnostics, and the caller’s connection trace. Keep the first detailed status even when a later wrapper translates it to error 7010; the first status often distinguishes transport, authorization, storage, schema, state, and application-integrity causes that share the same final Win32 result.

Handling, retry, and recovery

The recovery objective is to select an installed modem entry or remove legacy callback configuration, then test with the same user policy.

Retry it only after the recorded condition changes and completion state is known. Idempotent queries may be repeated after recovery, but mutations require a state check first; backoff cannot repair malformed input, corruption, missing structure, or policy rejection.

Telemetry and support fields

  • record ctx_invalid_modemname_api for the producing function or management operation.
  • record ctx_invalid_modemname_target for the file, log, session, replica, object, or server identity.
  • record ctx_invalid_modemname_state_before and ctx_invalid_modemname_requested_transition.
  • record ctx_invalid_modemname_first_status for the earliest lower-level diagnostic.

For support escalation involving it, retain decimal 7010, hexadecimal 0x00001B62, the API, UTC time, target identity, and first subsystem-specific status. Include the smallest reproducible request and evidence that distinguishes this condition from nearby codes. In the context of it, several modem-related values describe legacy callback functionality. they should be interpreted in that historical configuration context rather than as a generic modern rdp network failure.

Difference from nearby results

ERROR_CTX_MODEM_INF_NOT_FOUND means the information file itself was unavailable

Practical validation scenario

A callback profile names a modem from an older server image. Enumerating installed modems shows a different model name, and updating the profile allows initialization. The negative test should preserve the responsible condition and reproduce it; the recovery test should change only the identified cause, repeat the same operation, and verify both success and the absence of an unintended partial side effect.

Developer and administrator guidance

Administrators handling it should first decide whether the legacy callback or redirection feature is still required. Developers should treat connection-state notifications as state transitions and device failures as component-specific results instead of mapping every value to a generic RDP network outage. Code that exposes it through RPC, JSON, REST, PowerShell, or another protocol should preserve the Win32 domain, decimal 7010, hexadecimal 0x00001B62, and original component diagnostic.

References

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