EliteBook 840 G2 and Wifi Intel AC-7265 issue

[MichelMad]

We have a big issue with Intel Dual Band Wireless AC-7265 driver,

When used WPA2-Enterprise profiles pushed by Windows GPO, the wifi card authenticates every second using PMKSA. It is a authentication storm that we see in our wifi APs.

This does not happen with Intel AC-7260 tested in more than 400 PCs, different HP models but most of them EliteBook 840 G1, or when the profile is manually created (not pushed from a AD GPO).

This issue happens only with EliteBook 840 G2 using 7265 card, only with it. Right now, we have this card in all the last delivered HP Elitebook 840G2.

We've tried HP original drivers (HP connection Manager), the Intel last drivers with and without PROset (removing previously HP Connection Manager), and some old Intel drivers too, always with the same result.

We know the "every second" authentication happens because we have monitored the WIFI netwok with a "monitor" mode card. The  starting outgoing packets are always originated by the 7265 driver. Also, we see the authentication in the wifi APs (enterprise Netgear APs), because we have syslog, and the any Intel 7265 card that connects, starts sending the 4 way handshake for PMKSA (PEAP 25) wifi L2 proto.

[umair9001]

We have the similar issue on some particular machines with 2.4 Ghz with the particular network adapter. Working on 5 Ghz there are no issues observed. probably we will send the faulty laptop back to HP for repairs.