Client reboots, can't reconnect for 5-8 minutes?

[Frank Rizzo]

One other bit of data about this issue.

If I kill, and restart hostapd, the tablet connects immediately.  So, it's  
like there's some internal timeout that has to expire before a reconnect  
can happen.

-Frank


On Sun, 22 Nov 2015 19:38:34 -0800, Frank Rizzo  
<thefrankrizzo at hotmail.com> wrote:

> Hey guys,
>
> This is something that I'm observing, and I'm hoping it's been seen  
> before, and there's a simple solution.
>
> I have hostap setup and running, with freeradius.  I connect to the  
> server with an android tablet.
>
> The 1st connection after a fresh reboot of the server, and the tablet  
> connects IMMEDIATELY, and works fine.  If I reboot the tablet, it can't  
> connect to the server for a period of time.  (Most recent tests were 5,  
> and 8 minutes).  After this time has elapsed, it connects quickly, and  
> works fine.  I assumed it was a long inactivity timeout being set, and  
> hostap was assuming that the tablet was still connected, and refusing to  
> allow it to connect again.  So, I added ap_max_inactivity=30.  Figuring  
> it takes 45 seconds for the tablet to reboot, the records should be  
> clean when it go around to trying to reconnect.
>
> THIS DIDN'T SOLVE IT.
>
> So, I must be missing something.  Any help?
>
> config:
>
>
>
> interface=wlan0
> driver=nl80211
>
> logger_stdout=2
> logger_stdout_level=1
> logger_syslog=2
> logger_syslog_level=2
>
> ctrl_interface=/var/run/hostapd
> ctrl_interface_group=0
>
> ieee8021x=1
> eap_server=0
> eapol_key_index_workaround=0
> eap_reauth_period=0
> eapol_version=1
>
> ssid=My-Test
> country_code=US
> hw_mode=g
> channel=1
> beacon_int=100
> auth_algs=1
>
> dynamic_vlan=2
> vlan_file=hostapd.vlan
> vlan_tagged_interface=wlan0
>
> wpa=2
> wpa_key_mgmt=WPA-EAP
> wpa_pairwise=TKIP CCMP
> rsn_pairwise=CCMP
>
> # this inactivity poll is just used as a nicer way of verifying
> # inactivity; i.e., client will not report broken connection because
> # disassociation frame is not sent immediately without first polling
> # the STA with a data frame.
> # default: 300 (i.e., 5 minutes)
> ap_max_inactivity=30
>
> #  RADIUS stuff
> own_ip_addr=192.168.0.1  # The interface IP
> nas_identifier=my_test
> auth_server_addr=127.0.0.1 # Where is the radius server
> auth_server_port=1812      # The port the radius server runs on
> auth_server_shared_secret=RadiusKeyGoesHere
>
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