DNS_ERROR_NO_VALID_TRUST_ANCHORS 0x800723A7

Error code 9127 · HRESULT 0x800723A7

WINDOWS

This operation completed, but no trust anchors were added because all of the trust anchors received were either invalid, unsupported, expired, or would not become valid in less than 30 days.

Windows troubleshooting diagram: Device Manager warning and a system file scan
Windows errors: check drivers, system files and Event Viewer, in that order.

What it means

DNS_ERROR_NO_VALID_TRUST_ANCHORS is a Windows error code (system error 9127, returned as HRESULT 0x800723A7) reported by Windows. Its official message is: “This operation completed, but no trust anchors were added because all of the trust anchors received were either invalid, unsupported, expired, or would not become valid in less than 30 days.”

How to fix DNS_ERROR_NO_VALID_TRUST_ANCHORS

  1. Run the affected program as administrator (right-click → Run as administrator)
  2. Check permissions on the target resource: Properties → Security → your account
  3. Check Event Viewer → Windows Logs → Security for the matching audit entry
  4. Test connectivity to the remote host first (ping, then the exact port)
  5. Check firewall, VPN and proxy rules for the involved process
  6. Run 'ipconfig /flushdns' and 'netsh interface ip reset', then reboot

Related errors

DNS_ERROR_NO_PACKETDNS_ERROR_NO_ZONE_INFODNS_ERROR_NO_CREATE_CACHE_DATADNS_ERROR_NO_BOOTFILE_IF_DS_ZONEDNS_ERROR_INVALID_XMLDNS_ERROR_ROLLOVER_NOT_POKEABLEDNS_ERROR_DNSSEC_IS_DISABLED

Source: Microsoft WinError.h

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