// troubleshooting guide · hetzner
Hetzner Server Locked (Netscan / Abuse)
- Status
- Workaround available
- platforms:
- Linux, Windows
- updated:
- November 15, 2026
- reports:
- 4
- Method
- how we research
RUNBOOK · hetzner/server-locked-netscan4 FIXES
// quick answer
Hetzner locks servers and IPs that send netscans, floods or open-reflector traffic. Confirm with traceroute (blocked.hetzner.com), fix the cause, then file one unlock request in Robot with the locking ID.
Most likely fix: Confirm the lock
How to fix it
// try these in order, the most common fix is first
FIX 1Confirm the lock
- 01Read the locking email and its log excerpt
- 02Run traceroute to your IP
Did this fix it?FIX 2Get temporary access
- 01In Robot open Servers > Server locking and add your public IP
- 02If that is not offered, request a free KVM console via support
Did this fix it?FIX 3Fix the cause
- 01Check your own logs for outbound connections
- 02Clean or reinstall a compromised server
- 03Block the flagged traffic with a firewall
Did this fix it?FIX 4Submit one unlock request
- 01In Robot click the user icon > Support
- 02Under Unlock choose the locking ID from the email subject
- 03Describe exactly what you fixed
- 04Do not send duplicate requests
Did this fix it?
Symptoms
You get a locking email with an abuse report; the server's IP stops responding and traceroute ends at blocked.hetzner.com.
Why it happens
- C-01Compromised server running scans or malware
- C-02Tor relay or scanning tool triggering netscan detection
- C-03Open DNS/NTP/memcached reflector
- C-04Unreplied abuse report
- C-05Occasional false positives
// this guide also covers
- hetzner server locked
- hetzner netscan
- hetzner abuse report
- hetzner ip blocked
- blocked.hetzner.com
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