Hi, > We thought sending the delba would solve the problem as earlier thought > but the actual problem is with TX PN in a secure mode. > It is not because of delba that the Seq number and TX PN are reset to > zero. > It’s because of the HW restart, these parameters are reset to zero. > Since FW/HW is the one which decides the TX PN, when it goes through > SSR, all these parameters are reset. Right, we solved this problem too - in a sense the driver reads the database (not just TX PN btw, also RX replay counters) when the firmware crashes, and sending it back after the restart. mac80211 has some hooks for that. johannes