My iPhone keeps getting kicked off network - Help please

[douglas_liman]

This is the log for around the time it was kicked off (I have smart roam on at level 2 btw)

Jun 10 07:14:02 master - 1707 attic syslog: pid=2279, stamgr_cfg_adpt_build_ap_port_status():LAN label, the ap model is r510, the eth num is 0, the lan_append is  Port1, the label is 10/100/1000 PoE Port1  
Jun 10 07:14:02 master - 1707 attic syslog: upgrade_debug: pid=30926, get_ap_list(): see [/tmp/unleashed_upgrade/upgrade_ap_list_from_election.xml.ready], ap-list ready! 
Jun 10 07:14:02 master - 1707 attic syslog: upgrade_debug: pid=30926, get_ap_list(): ap-list loop 0. 
Jun 10 07:13:48 master - 1707 attic ZD-APMgr: IPC_thread rcv ping from TACMON 
Jun 10 07:13:29 master - 1707 attic syslog: pid=2279, _loadXmlStr():Unable to parse XML string (null) 
Jun 10 07:13:28 master - 1707 attic syslog: upgrade_debug: pid=30702, get_ap_list(): see [/tmp/unleashed_upgrade/upgrade_ap_list_from_election.xml.ready], ap-list ready! 
Jun 10 07:13:28 master - 1707 attic syslog: upgrade_debug: pid=30702, get_ap_list(): ap-list loop 0. 
Jun 10 07:13:23 master - 1707 attic stamgr: tac_del_arp:dev=br0 SIOCDARP failed, errno=6 
Jun 10 07:13:18 master - 1707 attic ZD-APMgr: IPC_thread rcv ping from TACMON 
Jun 10 07:13:03 master - 1707 attic last message repeated 2 times
Jun 10 07:12:52 master - 1707 attic stainfo[3871]: sta_info_detection_qmdpi_receive(911): Failed to identify device..!!!! No browser information  
Jun 10 07:12:48 master - 1707 attic ZD-APMgr: IPC_thread rcv ping from TACMON 
Jun 10 07:12:34 master - 1707 attic Eved: wlan1 88:a4:79:5e:82:55 : Authentication Difficulty 
Jun 10 07:12:28 master - 1707 attic syslog: pid=2279, _loadXmlStr():Unable to parse XML string (null) 
Jun 10 07:12:28 master - 1707 attic syslog: upgrade_debug: pid=30284, get_ap_list(): see [/tmp/unleashed_upgrade/upgrade_ap_list_from_election.xml.ready], ap-list ready! 
Jun 10 07:12:28 master - 1707 attic syslog: upgrade_debug: pid=30284, get_ap_list(): ap-list loop 0. 
Jun 10 07:12:26 master - 1707 attic syslog: pid=2280, AuthAdmin():password recovery already enabled, do not need prompt promotion 
Jun 10 07:12:26 master - 1707 attic syslog: pid=2280, AuthAdmin():admin login succeed, is_local_auth is 1 
Jun 10 07:12:26 master - 1707 attic syslog: pid=2280, LogoutAdmin():cred lookup fail 
Jun 10 07:12:21 master - 1707 attic kernel: [369641.595741] FWLOG: [110310706] RATE: ChainMask 3, peer_mac 82:55, phymode 5, ni_flags 0x00201006, vht_mcs_set 0x0000, ht_mcs_set 0xffff, legacy_rate_set 0x6933532
Jun 10 07:12:21 master - 1707 attic kernel: [369641.483149] net80211_tac_cfg_sta_set_param(): set station 88:a4:79:5e:82:55 vlan_id = 1
Jun 10 07:12:18 master - 1707 attic last message repeated 2 times

[eizens_putnins]

I would say, this is a very unlucky situation, and you have to find out what is really the source of the problem -- network, device or environment.

So there are some things to check:

1. Are any other devices disconnecting same way -- similar iPhones, different models and firmware versions, different make (Android), different type (laptops), etc--  ?

2. What is signal strength reported by iphone when it is disconnecting? Disconnecting with signal level -- 75 db or stronger should not happen.

3. Check if you have any interference -- check with any spectrum analyzer if available (Ruckus APs also provide basic spectrum analyses capability), or move AP for an experiment into a different area with clean RF conditions. It is not very often problem (except for active neighbor WiFi networks), but it

is usually difficult to diagnose and fix.

4. Look into logs -- what reason AP shows for client disconnection.

5. Check that your AP isn't changing WiFi channel often - change of channel often may kick devices from the network, even so it shouldn't. 

Make us know the results...

[douglas_liman]

For #4 and #5.  Where in log does is show reason for client disconnect.  Like the log posted at the beginning of my post covers the time frame of a disconnect but I don’t see it in the log - is there a different log to print? 

For #5 where can I see how often an ap is changing channels?  

[eizens_putnins]

All AP activity is visible in the log. To see there something, you need to enable proper log facility: Administration/Diagnostic/Debug info

System Management	RF Management
Web Authentication	Hotspot Services
RADIUS	Web Server
Access Points	Auto Election
802.1x	Client Association
802.11	Web Pages

[eizens_putnins]

You probably are interested in: APs, 802.11, RF, Client association.

[eizens_putnins]

Reason may be uninformative, but sometimes it may help. If disconnect happens after changing a channel, for example, it will be a useful info.