You may have captured a PMKID (from an AP with roaming enabled) rather than a full handshake. Tools like hashcat can crack PMKIDs differently – but aircrack-ng with a wordlist won’t handle them properly without conversion.

Wait for a genuine client to associate or deauth/reassoc cycle. Use aireplay-ng -0 2 -a AP_MAC -c CLIENT_MAC wlan0mon to force a fresh handshake.

The failure of probable.txt to crack the handshake does not imply uncrackable security. It simply indicates that the password is not among previously breached or collected passwords up to 2021. With rule-based mutations, masks, or custom wordlists, the success rate increases significantly. For modern WPA2/WPA3 networks, a strong 12+ character random password remains resistant to even large wordlist attacks, and dictionary-only attempts will often fail.

If handshake fails, try capturing PMKID (no deauth needed) and crack with -m 16800 (now -m 22000 ).

: The most frequent cause is simply that the network's password is not one of the common entries included in the wordlist-probable.txt Incomplete Handshake