← All Kali Issues
Nmap

No route to host

N Network High

🔴 Error Message

RTTVAR has grown to over 2.3 seconds

📖 What This Means

Network path is unreliable or blocked.

🔧 Step-by-Step Fix

  1. Check routing: traceroute target
  2. Increase timeout: nmap --max-rtt-timeout 5s
  3. Reduce parallelism: nmap --max-parallelism 1

🔗 More Nmap Issues

Nmap
Host seems down
Nmap
Permission denied raw sockets
Nmap
Service detection hanging
Nmap
NSE script error
Nmap
Scan extremely slow
Nmap
UDP scan requires root
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