wifi disconnects

[tusc]

I'm having issues with wireless disconnects on both bands. Initially I thought it was a problem with the 5ghz band so I've moved most of the devices to 2.4 but still see the disconnects, mostly with an Ipad 2 and 3 device. I've played around with Legacy and N mode on the 2.4 band as well as channel width but the problem persists.

I have to go into setitngs, wifi, turn off/on on the Ipad to fix the problem. Both devices use Broadcom WIFI chipsets: BCM4329 for Ipad 2 and BCM4330for Ipad 3. Both are running iOS 8.1.2

here's a sample output from logread during the event. There's nothing that shows a disconnection at the router level. At 11:31 I toggle wifi off/on on the Ipad and it logs a disassociated message.

Thu Jan 8 10:53:09 2015 daemon.info hostapd: wlan0: STA 64:20:0c:d9:XX:XX WPA: group key handshake completed (RSN)
Thu Jan 8 11:03:09 2015 daemon.info hostapd: wlan0: STA 64:20:0c:d9:XX:XX WPA: group key handshake completed (RSN)
Thu Jan 8 11:13:09 2015 daemon.info hostapd: wlan0: STA 64:20:0c:d9:XX:XX WPA: group key handshake completed (RSN)
Thu Jan 8 11:23:10 2015 daemon.info hostapd: wlan0: STA 64:20:0c:d9:XX:XX WPA: group key handshake completed (RSN)
Thu Jan 8 11:31:32 2015 daemon.info hostapd: wlan0: STA 64:20:0c:d9:XX:XX IEEE 802.11: disassociated
Thu Jan 8 11:31:33 2015 daemon.info hostapd: wlan0: STA 64:20:0c:d9:XX:XX IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE)
Thu Jan 8 11:31:38 2015 daemon.info hostapd: wlan0: STA 64:20:0c:d9:XX:XX IEEE 802.11: associated (aid 1)
Thu Jan 8 11:31:38 2015 daemon.info hostapd: wlan0: STA 64:20:0c:d9:XX:XX WPA: pairwise key handshake completed (RSN)
Thu Jan 8 11:31:38 2015 daemon.info dnsmasq-dhcp[2362]: DHCPREQUEST(br-lan) 192.168.1.181 64:20:0c:d9:XX:XX
Thu Jan 8 11:31:38 2015 daemon.info dnsmasq-dhcp[2362]: DHCPACK(br-lan) 192.168.1.181 64:20:0c:d9:XX:XX iPad

[yuhhaurlin]

deauthenticated due to inactivity (timer DEAUTH/REMOVE) => The problem happened because there is no traffic within the inactivity time period. Should be fixed in next release.

[okrasit]

If using owrt set hostapd disassoc_low_ack=0 with:
wireless.@wifi-iface[0].disassoc_low_ack=0
It should fix that with all APPLE devices.

[creiners]

I have done this and my apple products have stayed very stable for the past 4 hours.

[yuhhaurlin]

Still got problem on 10.2.8.5.p0?

[raven-au]

We will need to wait for others to comment on this but I thought I would comment on the disconnects I had seen in the previous release as it may be related.

With the previous release I was unable to watch streamed video from my Plex server for more than 1 to 2 hours before getting a network error which would then persist quite frequently.

With the current release I'm not getting these errors.

However I've not had the my device as the primary router for a longer period than a day, basically due to the disconnects. I'm now testing extended usage time.

[yuhhaurlin]

Thanks.

[Rovinatore]

Please help, in which file i have to put the disassoc_low_ack=0?

[adammichaelwilliams]

@Rovinatore Using Openwrt's UCI:
uci set wireless.@wifi-iface[0].disassoc_low_ack=0

[dmascord]

Hi guys,

There is a patch for other chipsets which supposedly resolves this "disconnect" problem.

openwrt/mt76#169

Perhaps it is related.

Cheers,

Damien