I use Atheros CM9 and if I activate encryption my CPU usage goes from 25% to 50% with the same load on Wireles card. On atheros page is writen - " Standard (AES), Temporal Key Integrity Protocol (TKIP) and Wired
Equivalent Privacy (WEP) without performance degradation ". It is normal? I use Mikrotik 2.9.7 on normal PC.