topic Re: Mobility Express Client roaming issue in Wireless

Mobility Express Client roaming issue

Deepak Kumar — Mon, 05 Jul 2021 16:45:53 GMT

Hi All,

I am facing some issue that clients are getting dropped during the roaming. Here are some primary logs:

MESSAGE_RECEIVED
AAA_MESSAGE_CREATION_FAILED
MESSAGE_RECEIVED
ASSOC_REQ_RECEIVED
MESSAGE_RECEIVED
AAA_MESSAGE_CREATION_FAILED
MESSAGE_RECEIVED
ASSOC_REQ_RECEIVED
MESSAGE_RECEIVED
MESSAGE_RECEIVED
AAA_MESSAGE_CREATION_FAILED
MESSAGE_RECEIVED
WLAN_REQUIRES_802_1X_AUTH
PACKET_SENT_TO_CLIENT
WEB_AUTH_MAX_RETRY_EXCEEDED
ADDING_WGB_CLIENT
CALL_TERMINATED
CALL_DURATION
WEB_AUTH_FAILED
WEB_AUTH_SUCCESS
IP_ADDR_CLEARED

I am going to attach a log file with complete reference.

Regards,

Deepak Kumar

Re: Mobility Express Client roaming issue

npchelpdesk — Tue, 12 Mar 2019 19:11:01 GMT

I have the exact same issue with similar logs...

AIR-CTVM-K9 version 8.3.143.0

AP's: AIR-CAP1602I-A-K9

WiFi calling is critical in this facility (all using iPhones)...

Some Log Messages:

MESSAGE_RECEIVED

INVALID_RSN_IE

WLAN_SUPPORTS_STATIC_DYNAMIC_WEP

IP_ACQUIRED_AND_AUTH_NOT_REQ_OR_STATIC_DYNAMIC_WEP_SUPPORTED

CLIENT_MOVED_TO_ASSOCIATED_STATE

RECEIVED_INTERFACE_CHANGE

MESSAGE_RECEIVED

AAA_MESSAGE_CREATION_FAILED

MESSAGE_RECEIVED

ASSOC_REQ_RECEIVED

MESSAGE_RECEIVED

AAA_MESSAGE_CREATION_FAILED

MESSAGE_RECEIVED

ASSOC_REQ_RECEIVED

MESSAGE_RECEIVED

AAA_MESSAGE_CREATION_FAILED

MESSAGE_RECEIVED

ASSOC_REQ_RECEIVED

MESSAGE_RECEIVED

AAA_MESSAGE_CREATION_FAILED

MESSAGE_RECEIVED

WLAN_REQUIRES_802_1X_AUTH

PACKET_SENT_TO_CLIENT

WEB_AUTH_MAX_RETRY_EXCEEDED

WEB_AUTH_SUCCESS

AAA_MESSAGE_CREATION_FAILED

MESSAGE_RECEIVED

INVALID_RSN_IE

WLAN_SUPPORTS_STATIC_DYNAMIC_WEP

IP_ACQUIRED_AND_AUTH_NOT_REQ_OR_STATIC_DYNAMIC_WEP_SUPPORTED

CLIENT_MOVED_TO_ASSOCIATED_STATE

RECEIVED_INTERFACE_CHANGE

MESSAGE_RECEIVED

AAA_MESSAGE_CREATION_FAILED

Those were recorded during a 5 minute call which dropped a few times. The caller was stationary at the time.

Re: Mobility Express Client roaming issue

Ric Beeching — Tue, 12 Mar 2019 23:24:30 GMT

Can you perform:

Debug client <mac address> for an affected phone during the roam drop
show wlan <#> where # is the number of WLAN for voice so I can see the config.

What model phones are you using and what version of software?

Ric

Re: Mobility Express Client roaming issue

npchelpdesk — Wed, 13 Mar 2019 18:04:03 GMT

2 Files are attached...

The phone is an iPhone 10 with OS version 12.1.4. However, we're having very similar issues with other iPhone's ranging from 5 - 10 and varying OS's. 82 total iPhones, all experiencing similar issues with dropped calls. The WiFi signal appears to be great, then goes to nothing for a second or 2 then reconnects. The troubles all seem very intermittent as well.

Thank you for any help you may be able to provide!

Re: Mobility Express Client roaming issue

npchelpdesk — Wed, 13 Mar 2019 18:05:25 GMT

Re: Mobility Express Client roaming issue

Ric Beeching — Thu, 14 Mar 2019 11:56:32 GMT

No issues with the debug but it shows the phone roaming 5 times to the same AP. I noticed your WLAN is 802.11g only, is that for a reason? You may find performance will improve if you make it dual band or 802.11a only.

For adaptive 802.11r please check the Over the DS is ticked below the Fast Transition option (under Layer 2 in the WLAN).

Or the following config will implement 5 GHz, over-the-ds adaptive .11r, and authentication key management (akm) for the wlan to assist with performance:

config wlan disable 12
config wlan radio 12 802.11ag
config wlan security wpa akm 802.1x enable
config wlan security ft over-the-ds enable
config wlan enable 12

Note: A brief outage will occur for above config to apply. Not saying this is a full fix but may assist..
Ric

Re: Mobility Express Client roaming issue

npchelpdesk — Thu, 14 Mar 2019 18:30:19 GMT

Thank you very much. Prior to seeing your update, we created a test ssid with some, if not all, of your recommendations. Today we tested and still got several dropped calls, debug log seems to have lots of DHCP_REQD entries. I'll post more info as to the results and configuration shortly.

Again, thanks for the help!

Re: Mobility Express Client roaming issue

npchelpdesk — Thu, 14 Mar 2019 19:42:48 GMT

Config and Debug are attached. The phone in use this time was an iPhone 7plus v12.1.4. Many dropped calls throughout the test.

Re: Mobility Express Client roaming issue

CavanRover — Fri, 09 Sep 2022 21:10:11 GMT

Did you ever get to the bottom of this? I am also having the same issue on iPhone 11 Pro with iOS 16.