Apple Device Roaming

[jeremy_west_564]

I am having a problem with frequent disconnects on apple devices when signal strength is great. In looking into this further, I noticed that the apple devices in question are roaming at an alarming rate. This is happening across iPad, iPod, and MacBook platforms. For example, I looked at an apartment with an iPod touch that was roaming every 30 seconds or so. There is a Win7 laptop in the same apartment that has not roamed one time. I have about 40 Apple devices on the network and similar behavior is happening on 70% of them. I have about 40 other devices on the network and this is not happening with any of them that I have looked at so far. What is more, the Apple devices are roaming out from a nearby AP to an AP several hundred feet away with a few buildings between them. The user is not leaving the apartment but the device is roaming to APs throughout the campus, even APs it either should not see at all, or just barely.

Any ideas? Has anyone seen anything like this before?

[darren_child]

I am having this same problem with MACS. I have been working with ruckus tech support for some time now. They still have not been able to come up with a good solution. The problem started occurring when I upgrade from 9.5.2 to 9.6.2. I am having this problem across multiple sites with multiple zds. Has anyone come up with a good solution?

[dtsblake_588878]

Any resolution for you?

[bill_burns_6069]

I don't *think* I'm having these problems anymore.
'though I lost track of what changes heppened at what time:
I'm guessing the fix (for me) was to set the bss-minrate to 12.

note:
ofdm-only is good too.
band-steering thresholds may play-in to apple roaming as well.
I have smartroam turned on. (to deal w/ the "stuck client" issue)
smartroam *may* contribute to the problem.

[dtsblake_588878]

Bill:

Would you mind giving a copy of your configuration and logs to RuckusWireless support so they can study and post some solutions ("Answers")?

[bill_burns_6069]

Can't dump the entire config here.
Let me know what you want to see other than the wlan config.

root@/etc/admin/ruckus# ./ruckusconf --enable --command "show wlan name CSHL" $CONTROLLER_IP
spawn ssh admin@

Please login: admin
Password:
What is the correct access password?

Welcome to the Ruckus Wireless ZoneDirector 3000 Command Line Interface
ruckus>
ruckus> ena
ruckus# show wlan name CSHL
WLAN Service:
ID:
1:
NAME = CSHL
Tx. Rate of Management Frame(2.4GHz) = 12.0Mbps
Beacon Interval = 100ms
SSID = CSHL
Description = Production CSHL
Type = Standard Usage
Authentication = open
Encryption = none
Web Authentication = Disabled
Authentication Server = Disabled
Called-Station-Id type = wlan-bssid
Tunnel Mode = Disabled
Background Scanning = Enabled
Max. Clients = 200
Client Isolation = Local
Zero-IT Activation = Disabled
Priority = High
Load Balancing = Enabled
Rate Limiting Uplink = Disabled
Rate Limiting Downlink = Disabled
Auto-Proxy configuration:
Status = Disabled
Inactivity Timeout:
Status = Enabled
Timeout = 5 Minutes
VLAN-ID = 48
Dynamic VLAN = Disabled
Closed System = Disabled
OFDM-Only State = Enabled
Multicast Filter State = Disabled
802.11d State = Enabled
DHCP Option82 State = Disabled
Ignore unauthorized client statistic = Disabled
STA Info Extraction State = Enabled
BSS Minrate = 12.0 Mbps
Call Admission Control State = Disabled
PMK Cache Timeout= 720 minutes
PMK Cache for Reconnect= Enabled
NAS-ID Type= wlan-bssid
Roaming Acct-Interim-Update= Disabled
PAP Message Authenticator = Enabled
Send EAP-Failure = Disabled
L2/MAC = No ACLS
L3/L4/IP Address = No ACLS
L3/L4/IPv6 Address = No ACLS
Precedence = Default
Proxy ARP = Disabled
Device Policy = No ACLS
SmartRoam = Enabled Roam-factor = 4

ruckus# exit
Exit Ruckus CLI.

Connection to 143.48.126.1 closed.