Tested on a "Intel Dual Band Wireless-AC 9260" rev 0x29, msix (hw rev 0x320, fw ver 34.3125811985.0)
I seem to be getting "iwm0: fatal firmware error" a few seconds after the 4-way handshake. I can send a few packets, so it sure connects and all, but then it fails shortly after. iwm0: begin active scan iwm0: INIT -> SCAN iwm0: end active scan iwm0: + 70:73:cb:cb:c3:86 40 +45 54M ess privacy rsn "FRA" iwm0: SCAN -> AUTH iwm0: sending auth to 70:73:cb:cb:c3:86 on channel 40 mode 11a iwm0: AUTH -> ASSOC iwm0: sending assoc_req to 70:73:cb:cb:c3:86 on channel 40 mode 11a iwm0: ASSOC -> RUN iwm0: associated with 70:73:cb:cb:c3:86 ssid "FRA" channel 40 start MCS 0 long preamble short slot time HT enabled iwm0: missed beacon threshold set to 30 beacons, beacon interval is 100 TU iwm0: received msg 1/4 of the 4-way handshake from 70:73:cb:cb:c3:86 iwm0: sending msg 2/4 of the 4-way handshake to 70:73:cb:cb:c3:86 iwm0: received msg 3/4 of the 4-way handshake from 70:73:cb:cb:c3:86 iwm0: sending msg 4/4 of the 4-way handshake to 70:73:cb:cb:c3:86 iwm0: sending action to 70:73:cb:cb:c3:86 on channel 40 mode 11n iwm0: fatal firmware error