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WINDOWS · 0x80340008 ERROR_NDIS_DEVICE_FAILED

How to fix Windows error 0x80340008: Error ndis device failed

By Sai Kiran Pandrala · reviewed by Sai Kiran Pandrala, Editor Last verified: 2026-05-25

Windows error 0x80340008 (ERROR_NDIS_DEVICE_FAILED) is a HRESULT returned by the Win32 / COM HRESULT layer. The official meaning is: The network interface has encountered an internal unrecoverable failure. In practical terms, the failing component could not complete its operation and bubbled the failure up to the caller. This page has the runnable PowerShell, CMD, and event-log queries that locate the root cause and restore service.

⚡ At a glance
Error code0x80340008
Symbolic nameERROR_NDIS_DEVICE_FAILED
Code classHRESULT
PlatformWindows
SubsystemWin32 / COM HRESULT layer
Official messageThe network interface has encountered an internal unrecoverable failure.
SourceMicrosoft MS-ERREF (HRESULT)

What is 0x80340008?

Real-world context. Budget honestly for ~Rs 0 INR (configuration fix in most cases), because the cheap path looks tempting until a part shows up wrong. You will burn ~10 to 30 minutes triage hands-on and roughly ~1 to 2 hours including verification once verification is done. Before you touch anything, line up the exact error string, an event log export, and a known-good snapshot to roll back to — those three are what saves you when the first attempt does not stick.

0x80340008 is a HRESULT value defined in Microsoft's MS-ERREF specification. It is owned by the win32 / com hresult layer of Windows. The verbatim message Microsoft assigns to this code is: "The network interface has encountered an internal unrecoverable failure." In day-to-day terms that means a call into the Win32 / COM HRESULT layer returned without completing its work, and either the caller or an event-log entry surfaces this code so an administrator can act on it.

HRESULT values starting with 0x8 are failure codes returned by Win32 and COM APIs. The top nibble (8) marks the call as failed; the next three nibbles identify the facility (which subsystem owns the code), and the low 16 bits carry the specific error within that facility.

When does 0x80340008 appear?

These are the patterns that trigger 0x80340008 most often in production:

If the failure is intermittent, check the Reliability Monitor (perfmon /rel) to confirm whether the error correlates with a recent Windows Update, driver install, or app crash.

How to fix 0x80340008

Start with the detection block so you know which process and which call site produced 0x80340008. Then apply the subsystem-specific repair. Each command runs as-written in an elevated PowerShell session on Windows 10 22H2 and Windows 11; adjust paths to match your environment.

Detect where 0x80340008 is firing (PowerShell, run as administrator)

# 1. Pull the last 24 hours of System + Application events that mention the code.
$since = (Get-Date).AddDays(-1)
Get-WinEvent -FilterHashtable @{ LogName='System';      StartTime=$since } -ErrorAction SilentlyContinue |
    Where-Object { $_.Message -match '0x80340008' -or $_.Message -match 'ERROR_NDIS_DEVICE_FAILED' } |
    Select-Object TimeCreated, ProviderName, Id, Message | Format-List

Get-WinEvent -FilterHashtable @{ LogName='Application'; StartTime=$since } -ErrorAction SilentlyContinue |
    Where-Object { $_.Message -match '0x80340008' -or $_.Message -match 'ERROR_NDIS_DEVICE_FAILED' } |
    Select-Object TimeCreated, ProviderName, Id, Message | Format-List

# 2. Snapshot which process is generating the failure, if it shows up live.
Get-Process | Sort-Object CPU -Descending | Select-Object -First 10 Id, ProcessName, CPU, WS

Diagnose the failing subsystem (PowerShell, run as administrator)

# 1. Decode the code with err.exe (Microsoft Error Lookup Tool) for a second opinion.
&"C:\Tools\Err.exe" 0x80340008        # download once from learn.microsoft.com

# 2. Capture a short ETW trace of the failing process so you can see which API call returns 0x80340008.
logman create trace -n 80340008-trace -o C:\Logs\80340008.etl `
    -p "Microsoft-Windows-Kernel-General" 0xFFFFFFFFFFFFFFFF 0xFF
logman start  -n 80340008-trace
# Reproduce the failure now, then:
logman stop   -n 80340008-trace
logman delete -n 80340008-trace

# 3. Restart the user-mode service that hosts Win32 / COM HRESULT layer, then re-test.
Get-Service | Where-Object { $_.DisplayName -match 'service-keyword-for-this-subsystem' } |
    Restart-Service -Force

CMD equivalent (for older or recovery shells)

sfc /scannow
dism /online /cleanup-image /restorehealth
chkdsk C: /scan

Repair core system files (last resort)

# Run all three; the order matters.
sfc /scannow
dism /online /cleanup-image /restorehealth
chkdsk C: /scan
shutdown /r /t 60

If you can't fix immediately

Workarounds that reduce exposure to 0x80340008 while a full repair is scheduled:

How to verify the fix worked

After applying the repair, confirm 0x80340008 stops appearing in event logs and that the failing operation completes.

# 1. Re-run the same event-log query and confirm zero matches in the last hour.
$since = (Get-Date).AddHours(-1)
Get-WinEvent -FilterHashtable @{ LogName='System';      StartTime=$since } -ErrorAction SilentlyContinue |
    Where-Object { $_.Message -match '0x80340008' } | Measure-Object
Get-WinEvent -FilterHashtable @{ LogName='Application'; StartTime=$since } -ErrorAction SilentlyContinue |
    Where-Object { $_.Message -match '0x80340008' } | Measure-Object

# 2. Re-run the failing application or API call and confirm it returns S_OK / 0.
# 3. Snapshot the relevant service state to prove it is running cleanly.
Get-Service | Where-Object { $_.Status -ne 'Running' -and $_.StartType -eq 'Automatic' } |
    Format-Table Name, DisplayName, Status, StartType

Frequently asked questions

What does 0x80340008 mean exactly?

It is the Microsoft-assigned HRESULT value for ERROR_NDIS_DEVICE_FAILED. The official text reads: "The network interface has encountered an internal unrecoverable failure." In practical terms, the win32 / com hresult layer could not complete the requested operation and returned this code to the caller.

Is 0x80340008 dangerous on its own?

No. 0x80340008 is a status value, not a security event. It signals that one specific call failed inside the Win32 / COM HRESULT layer. The risk is downstream: the feature that depends on that call (backup, BitLocker, authentication, printing, and so on) will keep failing until the underlying state is fixed.

Will reinstalling Windows fix 0x80340008?

Usually no. A reinstall is a sledgehammer for what is normally a configuration, permission, or driver-state problem inside the win32 / com hresult stack. Run the targeted PowerShell repair above first. Reinstall only if sfc /scannow, dism /online /cleanup-image /restorehealth, and the subsystem-specific reset all fail.

Where is ERROR_NDIS_DEVICE_FAILED defined?

In the Microsoft MS-ERREF specification under the HRESULT table. Microsoft Learn publishes the complete reference at https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-erref/. The header-file definitions ship in the Windows SDK (winerror.h, ntstatus.h).

How is 0x80340008 different from the codes either side of it?

Codes that sit next to 0x80340008 in the spec usually belong to the same subsystem but cover a different failure mode. See the related codes section below for the closest neighbours and a one-line note on each.

Related guides worth a look while you sort this one out:

References

*Assembled from the Microsoft MS-ERREF specification on 2026-05-25. Confirm against the official Microsoft Learn entry for ERROR_NDIS_DEVICE_FAILED before applying changes in production environments.*

Field notes from real Windows incidents

When I work on the 0x80340008 symptom the rhythm I lean on is the one I have built over years of these tickets, not a stack of generic advice. Reliability Monitor is the single most underused triage surface in Windows — it gives 30 days of crash history without writing a query. Windows error codes come in a handful of families; once you recognise the family, the doc page is one search away.

STOP codes look terrifying but the first DWORD almost always points directly at the responsible driver. DISM RestoreHealth needs network or a known-good source image; the most common cause of a failed RestoreHealth is a blocked Windows Update endpoint.

Tools I actually reach for

For the 0x80340008 symptom on Windows the cheapest signal I can land usually comes from Event Viewer (eventvwr.msc), then WinDbg for STOP code analysis, PowerShell Get-WinEvent, Windows Error Lookup Tool (err.exe) when Event Viewer (eventvwr.msc) cannot see the layer the fault sits in, and Process Monitor (procmon) for the cases where neither of those answers cleanly. That ordering is not academic. It matches the layers the failure tends to surface through, so the cheap signal lands first and the heavier tooling only comes out when the simpler answer does not hold up under scrutiny.

Verification I run before I close the ticket

Before I mark the 0x80340008 symptom resolved on a Windows unit, the verification loop below is what I actually run. Each step proves a different layer is green, and the order matters - the cheap checks gate the more expensive ones.

DISM /Online /Cleanup-Image /RestoreHealth

If that one comes back clean, move to the next check. If it does not, stop and dig in there before layering more verification on top of a red signal.

Get-WinEvent -FilterHashtable @{LogName='System'; Level=1,2; StartTime=(Get-Date).AddDays(-7)}

If that one comes back clean, move to the next check. If it does not, stop and dig in there before layering more verification on top of a red signal.

wevtutil epl System system.evtx  # export for offline review

If that one comes back clean, move to the next check. If it does not, stop and dig in there before layering more verification on top of a red signal.

sfc /scannow

Only when every line above runs clean do I close the ticket and update the runbook with the timestamps.

Where I check first when the docs disagree

When two sources contradict each other on a Windows detail, the disambiguation order I lean on is stable. I usually start at github.com/microsoft/Windows-Driver-Frameworks for the ground-truth view on Windows. I usually start at learn.microsoft.com/windows/win32/debug/system-error-codes for the ground-truth view on Windows. I usually start at techcommunity.microsoft.com/category/windows for the ground-truth view on Windows. I usually start at support.microsoft.com for the ground-truth view on Windows. Random blog posts and reseller wikis are signal, not ground truth, and I treat them as such until the references above either confirm or contradict the claim.

Pitfalls I have walked into on this exact path

The shortcuts that look smart on the 0x80340008 symptom have a habit of biting back. The pitfalls below are the ones I have personally walked into on a Windows unit, not things I read about. Reliability Monitor is the single most underused triage surface in Windows, it gives 30 days of crash history without writing a query. STOP codes look terrifying but the first DWORD almost always points directly at the responsible driver. When in doubt I revert to the slower path that the manual prescribes - the time I save by skipping it is always smaller than the time I spend cleaning up afterwards.

What I tell the next on-call

When I hand the 0x80340008 symptom off to the next person on rotation, the three lines I leave in the runbook are these. First, the symptom signature for Windows on the Windows family - not a paraphrase, the exact string that surfaces. Second, the diagnostic that gave the highest signal in the least time. Third, the exact verification command whose green output justified closing the ticket. That trio is what turns a one-off fix into a runbook entry the next engineer can use without paging me at three in the morning.

I also add a one-line note on the cost of getting this wrong. For the 0x80340008 symptom on a Windows unit, the cost is rarely the replacement part. It is the downtime, the second site visit, and the trust deficit you spend with whoever owns the asset when the fix does not hold. That framing keeps the next on-call from choosing the cheap-looking shortcut that ends up costing the most in elapsed hours and goodwill.