I've been using the RAL(4) driver and a wifi card with the RT2561 chipset (Linksys WMP54g) for a few years as my wifi access point, and have had no problems at all. Recently I switched to an 802.11n card with RT2860 chipset (Edimax EW-7728in) in hopes of getting some higher transfer speeds to my server storage, only to find out that OpenBSD's 802.11 stack doesn't have any 11n functionality at all and thusly runs as 11g only. Since I switched to using the RT2860 chipset, first on obsd 4.3 and currently on 4.8, I've started to experience a recurring problem: every now and then, after disconnecting a machine from the access point, RAL(4) will refuse further connections from that machine (I'm not sure if it depends on the IP of the client or its MAC address etc.), resulting in only getting a "connection timed out" when trying to associate with the AP, until I down/up the RAL(4) interface or simply "restart" it using /etc/netstart.
Any ideas? Anyone seen this with before with RAL(4) and/or the RT2860 family? I'm currently netstart'ing the interface every 24 hours via cron to solve the problem, but it feels like jumping through hoops, so to speak - this is after all a bug of some sort. Thankful for any info