Hi, We are working on an RT5350 (Ralink MIPS) OpenWRT design and we are experiencing a problem when we try to connect our device in client mode to certain APs. We get 4 way handshake timeouts from wpa_supplicant when attempting to connect to an ASUS RT-AC66U, ASUS RT-N66U, or Linksys EA2700 access point running stock vendor firmware. We are in the process of collecting more data, but it appears that we receive message 3, but don't send message 4 until a second message 3 arrives. The ASUS acks, but ignores our message 4, and it continues to send six more message 3's, which wpa_supplicant ignores. Based on logging data from wireshark and wpa_supplicant, our *speculation* is that associating with the AP causes a receive event(s) to be missed, causing a late response to message 3 from the AP. Note that our device has no problems connecting to a Netgear WNDR3800, Netgear WNDR4000, and TP-Link WDR3600 running their stock firmware. It also connects without problems to a TP-Link WDR3600 running OpenWRT Barrier Breaker 14.07. The wpa_supplicant code we are running is commit 8278138e679174b1ec8af7f169c2810a8888e202 from March 2015, plus OpenWRT patches. We plan to try the latest version of wpa_supplicant, but this requires determining which OpenWRT patches are still applicable, so this is still a work in progress. We are also continuing to to work on collecting relevant time-correlated packet and wpa_supplicant logs. In the meantime, I thought I would ask whether anyone has any seen this type of problem and whether there is a fix or workaround. thanks, galen -- Galen Seitz galens@xxxxxxxxxxxxxx _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap
