Laptop Network Unlock server not reachable
4.5
The laptop cannot find the unlock server during the boot process.
Symptoms
- Timeout
- No network activity
- Fallback to PIN
Possible Causes
- VLAN mismatch
- Firewall blocking UDP 67/68
- Server down
Step-by-Step Fix
1
Check VLAN Tagging
Ensure the laptop is on the correct VLAN at boot.
2
Open Firewall Ports
Ensure UDP 67, 68, and 4011 are open.
3
Ping Server
Verify the server is up and responding on the network.
When to See a Technician
Network Unlock happens before Windows loads, so it relies entirely on the UEFI network driver and DHCP.
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