PPSK’s & Roaming

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  • Question
  • Updated 5 years ago
  • Answered
We have a number of sites setup with PPSK, and are in the process of rolling Ascom i62 Wi-Fi phones to some of these. The testing seems to have identified a general issue with delays when roaming between the AP’s and using PPSK's.
To test out site coverage I called a desk phone from the Ascom phone, and placed the call on hold. This allowed me to listened to music on hold as I walked around. Periodically I would hear a break in the music that could last for up to 5 seconds. (The client monitor indicated that these breaks happened at the same time that the client was moving between AP’s.)

Due to a reasonably high density there are no coverage issues, and signal strength is very good at the time. The issue would occur while being within a few feet of the AP’s. The problem was inconsistent, and only happened some of the times that I was moving around.

To eliminate the Ascom phones as being the issue I used an app on an Android to listen to Internet radio. The buffer was set to 3 seconds, and the behaviour mirrored the Ascom behaviour. (This of course adds Internet connectivity as a variable, but I don’t think Internet connectivity was a factor in this test.)

Since then I have spoken to another site that uses Cisco Wi-Fi phones, and the Facilities Manager reports the same symptoms, so I do not think this is an Ascom issue.

My understanding was that using PPSK effectively removed the delays when roaming between AP’s. Does anyone else experience similar problems, or has anyone else configured VoIP over Wi-Fi using PPSK’s so that there are no delays when roaming?
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sx

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Posted 5 years ago

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Photo of Gary Smith

Gary Smith, Official Rep

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I have some questions which I usually ask when seeing these kinds of issues.

How many AP's are visible?
What is the cell overlap like?
is the issue the same on both 2.4GHz and 5GHz?
What data-rates are allowed on the AP's?
What is the AP radio power set to?
Are there other non-Aerohive AP's in the same areas?
What does a client monitor output suggest during the roam?
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sx

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Hi Gary,
thanks for the reply. Hopefully this answers you questions.
* Forgot to mention that we are running 5.1r5.
* The devices can see multiple AP's and I think the density/overlap is good. In addition to the AP's on this level the clients can also see AP's on floors that are above and below.

* We are band steering to 5GHz, and I haven't really tried 2.4.
* Rates are here

* Power is on auto. 2.4 is pulling the power down, 5 is running full.
* There are no other AP's in the area.
* Here is some of the output from monitoring.
07/15/2013 08:51:03 00013E14F88F 08EA448C9E2B SCHL-GRA-AP32 BASIC [39]Rx assoc req (rssi 17dB)
07/15/2013 08:51:26 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 BASIC [436]Sta(at if=wifi1.4) is de-authenticated because of STA roam away
07/15/2013 08:51:26 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 BASIC [438]Sta(at if=wifi1.4) is de-authenticated because of STA roam away
07/15/2013 08:51:26 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 BASIC [439]Sta(at if=wifi1.4) is de-authenticated because of notification of driver
07/15/2013 08:51:26 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 BASIC [530]Rx auth (frame 1, rssi 34dB)
07/15/2013 08:51:26 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 BASIC [531]Tx auth (frame 2, status 0, pwr 11dBm)
07/15/2013 08:51:26 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 BASIC [532]Rx assoc req (rssi 34dB)
07/15/2013 08:51:26 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 BASIC [533]Tx assoc resp (status 0, pwr 11dBm)
07/15/2013 08:51:26 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 INFO [534]WPA-PSK auth is starting (at if=wifi1.4)
07/15/2013 08:51:26 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 INFO [535]Sending 1/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:51:26 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 INFO [536]Received 2/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:51:26 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 INFO [537]Sending 3/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:51:26 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 INFO [538]Received 4/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:51:26 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 INFO [539]PTK is set (at if=wifi1.4)
07/15/2013 08:51:26 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 BASIC [540]Authentication is successfully finished (at if=wifi1.4)
07/15/2013 08:51:26 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 BASIC [541]IP 172.18.105.13 assigned for station
07/15/2013 08:51:33 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 BASIC [546]Sta(at if=wifi1.4) is de-authenticated because of STA roam away
07/15/2013 08:51:33 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 BASIC [548]Sta(at if=wifi1.4) is de-authenticated because of STA roam away
07/15/2013 08:51:33 00013E14F88F 08EA44814C6B SCHL-GRA-AP17 BASIC [549]Sta(at if=wifi1.4) is de-authenticated because of notification of driver
07/15/2013 08:51:33 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 BASIC [559]Rx auth (frame 1, rssi 53dB)
07/15/2013 08:51:33 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 BASIC [560]Tx auth (frame 2, status 0, pwr 11dBm)
07/15/2013 08:51:33 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 BASIC [561]Rx assoc req (rssi 53dB)
07/15/2013 08:51:33 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 BASIC [562]Tx assoc resp (status 0, pwr 11dBm)
07/15/2013 08:51:33 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 INFO [563]WPA-PSK auth is starting (at if=wifi1.4)
07/15/2013 08:51:33 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 INFO [564]Sending 1/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:51:33 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 INFO [565]Received 2/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:51:33 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 INFO [566]Sending 3/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:51:33 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 INFO [567]Received 4/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:51:33 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 INFO [568]PTK is set (at if=wifi1.4)
07/15/2013 08:51:33 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 BASIC [569]Authentication is successfully finished (at if=wifi1.4)
07/15/2013 08:51:33 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 BASIC [570]IP 172.18.105.13 assigned for station
07/15/2013 08:51:56 00013E14F88F 08EA44814CE8 SCHL-GRA-AP15 BASIC [596]Rx assoc req (rssi 22dB)
07/15/2013 08:51:56 00013E14F88F 08EA44814CE9 SCHL-GRA-AP15 BASIC [597]Rx assoc req (rssi 22dB)
07/15/2013 08:51:56 00013E14F88F 08EA44814CEA SCHL-GRA-AP15 BASIC [598]Rx assoc req (rssi 22dB)
07/15/2013 08:51:56 00013E14F88F 08EA44814CEB SCHL-GRA-AP15 BASIC [599]Rx assoc req (rssi 22dB)
07/15/2013 08:51:56 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 BASIC [513]Rx auth (frame 1, rssi 69dB)
07/15/2013 08:51:56 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 BASIC [514]Tx auth (frame 2, status 0, pwr 15dBm)
07/15/2013 08:51:56 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 BASIC [515]Rx assoc req (rssi 69dB)
07/15/2013 08:51:56 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 BASIC [516]Tx assoc resp (status 0, pwr 15dBm)
07/15/2013 08:51:56 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 INFO [517]WPA-PSK auth is starting (at if=wifi1.4)
07/15/2013 08:51:56 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 INFO [518]Sending 1/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:51:56 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 INFO [519]Received 2/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:51:56 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 INFO [520]Sending 3/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:51:56 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 INFO [521]Received 4/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:51:56 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 INFO [522]PTK is set (at if=wifi1.4)
07/15/2013 08:51:56 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 BASIC [523]Authentication is successfully finished (at if=wifi1.4)
07/15/2013 08:51:56 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 BASIC [524]IP 172.18.105.13 assigned for station
07/15/2013 08:51:56 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 BASIC [581]Sta(at if=wifi1.4) is de-authenticated because of STA roam away
07/15/2013 08:51:56 00013E14F88F 08EA44814BEB SCHL-GRA-AP19 BASIC [583]Sta(at if=wifi1.4) is de-authenticated because of notification of driver
07/15/2013 08:51:56 00013E14F88F 08EA448237A8 SCHL-GRA-AP25 BASIC [648]Rx assoc req (rssi 21dB)
07/15/2013 08:51:56 00013E14F88F 08EA448237A9 SCHL-GRA-AP25 BASIC [649]Rx assoc req (rssi 21dB)
07/15/2013 08:51:56 00013E14F88F 08EA448237AA SCHL-GRA-AP25 BASIC [650]Rx assoc req (rssi 21dB)
07/15/2013 08:51:56 00013E14F88F 08EA448237AB SCHL-GRA-AP25 BASIC [651]Rx assoc req (rssi 21dB)
07/15/2013 08:51:56 00013E14F88F 08EA448C9E28 SCHL-GRA-AP32 BASIC [327]Rx assoc req (rssi 21dB)
07/15/2013 08:51:56 00013E14F88F 08EA448C9E29 SCHL-GRA-AP32 BASIC [328]Rx assoc req (rssi 21dB)
07/15/2013 08:51:56 00013E14F88F 08EA448C9E2A SCHL-GRA-AP32 BASIC [329]Rx assoc req (rssi 21dB)
07/15/2013 08:51:56 00013E14F88F 08EA448C9E2B SCHL-GRA-AP32 BASIC [330]Rx assoc req (rssi 21dB)
07/15/2013 08:53:12 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 BASIC [559]Sta(at if=wifi1.4) is de-authenticated because of STA roam away
07/15/2013 08:53:12 00013E14F88F 08EA44814CAB SCHL-GRA-AP16 BASIC [561]Sta(at if=wifi1.4) is de-authenticated because of notification of driver
07/15/2013 08:53:12 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 BASIC [779]Rx auth (frame 1, rssi 48dB)
07/15/2013 08:53:12 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 BASIC [780]Tx auth (frame 2, status 0, pwr 15dBm)
07/15/2013 08:53:12 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 BASIC [781]Rx assoc req (rssi 48dB)
07/15/2013 08:53:12 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 BASIC [782]Tx assoc resp (status 0, pwr 15dBm)
07/15/2013 08:53:12 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 INFO [783]WPA-PSK auth is starting (at if=wifi1.4)
07/15/2013 08:53:12 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 INFO [784]Sending 1/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:53:12 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 INFO [785]Received 2/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:53:12 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 INFO [786]Sending 3/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:53:12 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 INFO [787]Received 4/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:53:12 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 INFO [788]PTK is set (at if=wifi1.4)
07/15/2013 08:53:12 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 BASIC [789]Authentication is successfully finished (at if=wifi1.4)
07/15/2013 08:53:12 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 BASIC [790]IP 172.18.105.13 assigned for station
07/15/2013 08:53:30 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 BASIC [612]Rx auth (frame 1, rssi 30dB)
07/15/2013 08:53:30 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 BASIC [613]Tx auth (frame 2, status 0, pwr 11dBm)
07/15/2013 08:53:30 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 BASIC [614]Rx assoc req (rssi 30dB)
07/15/2013 08:53:30 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 BASIC [615]Tx assoc resp (status 0, pwr 11dBm)
07/15/2013 08:53:30 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 INFO [616]WPA-PSK auth is starting (at if=wifi1.4)
07/15/2013 08:53:30 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 INFO [617]Sending 1/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:53:30 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 INFO [618]Received 2/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:53:30 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 INFO [619]Sending 3/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:53:30 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 BASIC [799]Sta(at if=wifi1.4) is de-authenticated because of STA roam away
07/15/2013 08:53:30 00013E14F88F 08EA44814C2B SCHL-GRA-AP18 BASIC [801]Sta(at if=wifi1.4) is de-authenticated because of notification of driver
07/15/2013 08:53:31 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 INFO [620]Received 4/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:53:31 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 INFO [621]PTK is set (at if=wifi1.4)
07/15/2013 08:53:31 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 BASIC [622]Authentication is successfully finished (at if=wifi1.4)
07/15/2013 08:53:31 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 BASIC [623]IP 172.18.105.13 assigned for station
07/15/2013 08:53:36 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 BASIC [815]Rx auth (frame 1, rssi 53dB)
07/15/2013 08:53:36 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 BASIC [816]Tx auth (frame 2, status 0, pwr 15dBm)
07/15/2013 08:53:36 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 BASIC [817]Rx assoc req (rssi 53dB)
07/15/2013 08:53:36 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 BASIC [818]Tx assoc resp (status 0, pwr 15dBm)
07/15/2013 08:53:36 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 INFO [819]WPA-PSK auth is starting (at if=wifi1.4)
07/15/2013 08:53:36 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 INFO [820]Sending 1/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:53:36 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 INFO [821]Received 2/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:53:36 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 INFO [822]Sending 3/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:53:36 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 INFO [823]Received 4/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:53:36 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 INFO [824]PTK is set (at if=wifi1.4)
07/15/2013 08:53:36 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 BASIC [825]Authentication is successfully finished (at if=wifi1.4)
07/15/2013 08:53:36 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 BASIC [826]IP 172.18.105.13 assigned for station
07/15/2013 08:53:36 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 BASIC [626]Sta(at if=wifi1.4) is de-authenticated because of STA roam away
07/15/2013 08:53:36 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 BASIC [628]Sta(at if=wifi1.4) is de-authenticated because of STA roam away
07/15/2013 08:53:36 00013E14F88F 08EA448C7EEB SCHL-GRA-AP07 BASIC [629]Sta(at if=wifi1.4) is de-authenticated because of notification of driver
07/15/2013 08:54:03 00013E14F88F 08EA448C7E6B SCHL-GRA-AP05 BASIC [188]Rx auth (frame 1, rssi 44dB)
07/15/2013 08:54:03 00013E14F88F 08EA448C7E6B SCHL-GRA-AP05 BASIC [189]Tx auth (frame 2, status 0, pwr 14dBm)
07/15/2013 08:54:03 00013E14F88F 08EA448C7E6B SCHL-GRA-AP05 BASIC [190]Rx assoc req (rssi 42dB)
07/15/2013 08:54:03 00013E14F88F 08EA448C7E6B SCHL-GRA-AP05 BASIC [191]Tx assoc resp (status 0, pwr 14dBm)
07/15/2013 08:54:03 00013E14F88F 08EA448C7E6B SCHL-GRA-AP05 INFO [192]WPA-PSK auth is starting (at if=wifi1.4)
07/15/2013 08:54:03 00013E14F88F 08EA448C7E6B SCHL-GRA-AP05 INFO [193]Sending 1/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:54:03 00013E14F88F 08EA448C7E6B SCHL-GRA-AP05 INFO [194]Received 2/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:54:03 00013E14F88F 08EA448C7E6B SCHL-GRA-AP05 INFO [195]Sending 3/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:54:03 00013E14F88F 08EA448C7E6B SCHL-GRA-AP05 INFO [196]Received 4/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:54:03 00013E14F88F 08EA448C7E6B SCHL-GRA-AP05 INFO [197]PTK is set (at if=wifi1.4)
07/15/2013 08:54:03 00013E14F88F 08EA448C7E6B SCHL-GRA-AP05 BASIC [198]Authentication is successfully finished (at if=wifi1.4)
07/15/2013 08:54:03 00013E14F88F 08EA448C7E6B SCHL-GRA-AP05 BASIC [199]IP 172.18.105.13 assigned for station
07/15/2013 08:54:03 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 BASIC [837]Sta(at if=wifi1.4) is de-authenticated because of STA roam away
07/15/2013 08:54:03 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 BASIC [839]Sta(at if=wifi1.4) is de-authenticated because of STA roam away
07/15/2013 08:54:03 00013E14F88F 08EA448C7EAB SCHL-GRA-AP06 BASIC [840]Sta(at if=wifi1.4) is de-authenticated because of notification of driver
07/15/2013 08:54:03 00013E14F88F 08EA448236E8 SCHL-GRA-AP22 BASIC [40]Rx assoc req (rssi 7dB)
07/15/2013 08:54:03 00013E14F88F 08EA448236E9 SCHL-GRA-AP22 BASIC [41]Rx assoc req (rssi 7dB)
07/15/2013 08:54:03 00013E14F88F 08EA448236EA SCHL-GRA-AP22 BASIC [42]Rx assoc req (rssi 7dB)
07/15/2013 08:54:03 00013E14F88F 08EA448236EB SCHL-GRA-AP22 BASIC [43]Rx assoc req (rssi 7dB)
07/15/2013 08:54:38 00013E14F88F 08EA448C7DAB SCHL-GRA-AP02 BASIC [648]Rx auth (frame 1, rssi 56dB)
07/15/2013 08:54:38 00013E14F88F 08EA448C7DAB SCHL-GRA-AP02 BASIC [649]Tx auth (frame 2, status 0, pwr 15dBm)
07/15/2013 08:54:38 00013E14F88F 08EA448C7DAB SCHL-GRA-AP02 BASIC [650]Rx assoc req (rssi 56dB)
07/15/2013 08:54:38 00013E14F88F 08EA448C7DAB SCHL-GRA-AP02 BASIC [651]Tx assoc resp (status 0, pwr 15dBm)
07/15/2013 08:54:38 00013E14F88F 08EA448C7DAB SCHL-GRA-AP02 INFO [652]WPA-PSK auth is starting (at if=wifi1.4)
07/15/2013 08:54:38 00013E14F88F 08EA448C7DAB SCHL-GRA-AP02 INFO [653]Sending 1/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:54:38 00013E14F88F 08EA448C7DAB SCHL-GRA-AP02 INFO [654]Received 2/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:54:38 00013E14F88F 08EA448C7DAB SCHL-GRA-AP02 INFO [655]Sending 3/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:54:38 00013E14F88F 08EA448C7DAB SCHL-GRA-AP02 INFO [656]Received 4/4 msg of 4-Way Handshake (at if=wifi1.4)
07/15/2013 08:54:38 00013E14F88F 08EA448C7DAB SCHL-GRA-AP02 INFO [657]PTK is set (at if=wifi1.4)
07/15/2013 08:54:38 00013E14F88F 08EA448C7DAB SCHL-GRA-AP02 BASIC [658]Authentication is successfully finished (at if=wifi1.4)
07/15/2013 08:54:38 00013E14F88F 08EA448C7DAB SCHL-GRA-AP02 BASIC [659]IP 172.18.105.13 assigned for station

TIA,
Tony
Photo of Abby S

Abby S, Employee

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hi Tony, can you do a "show amrp neighbor" if you're in the CLI anyway? Is there any chance these devices aren't in the same Hive or are on different L3 subnets?
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sx

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Hi Abby,
Sorry, but I don't have access to the CLI. However looking at the the AP's from Hivemanager it appears that all AP's at this site are showing as neighbours with a link cost of 1 and link type of Ethernet if that helps.

The devices are all part of the same hive, and are all on the same L3 subnet.

I am trying to get some more information, but it appears that may an issue at more than more than one site.

Regards,
Tony
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Gary Smith, Official Rep

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Hi Tony,

Can you show us the floorplan with some examples of the neighbor relationships?
If you right click an AP and then "ACSP neighbor information" you should be able to get and idea of the signal coverage between some AP's.

Do you have a minimum -65dBm coverage across the site for voice?

Do you have QoS configured for VOIP?

Thanks,
Gary
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sx

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I believe that the site was designed for -65dBm coverage for voice, and that QoS is on.

Here are three of the AP's where I experienced problems.

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Gary Smith, Official Rep

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Hi Tony,

You have disabled lower data rates on the 2.4Ghz. Have you tried disabling them on 5GHz? In VoWLAN deployments, many vendors encourage lower data rates to be disabled.

In your first post you indicate that this is a PPSK/roaming issue. Have you tried with an open SSID as a test?

Thanks,
Gary