Wireless Access

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Frequent Contributor I

Clients seem to randomly lose access

Hello,

 

I have some stationary computers that are losing their connection to the AP.   It has the latest firmware on it.

Occasional Contributor I

Re: Clients seem to randomly lose access

If your clients are running Intel 7260 cards, you might take a look at this thread.  It has quite a bit of information about the issues that peopel are seeing with those specific cards.  

 

If it's not that, adding a bit more detail might help diagnose the issue.  What AP's?  What clients?

Frequent Contributor I

Re: Clients seem to randomly lose access

Hello,

 

I'm going onsite tomorrow to see if I can gather any info.  They are all AP225s.   The workstations are 90% macbooks pro and air.   My guess is no station is more than two years old.  I don't know if the macbooks have any intel nics in them as I usually support PCs.

Guru Elite

Re: Clients seem to randomly lose access

boe,

 

Recent macbook pros have Broadcom NICs in them, NOT Intel nics.  If you are having problems, you should open up a TAC case in parallel, so that they can give you ideas about what needs to be done prior to your visit.

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Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.
******************
Guru Elite

Re: Clients seem to randomly lose access

boe,

 

If you  can ssh into the controller, please post the output of "show ap radio-summary"

******************
Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.
******************
Frequent Contributor I

Re: Clients seem to randomly lose access

Thanks I just Puttied in and that is not an option on my units - there is Show ap, ap-alert, ap-env, app-services, aps.

 

I can do show radio  (not sure if that is close enough)

 

94:b4:0f:c8:87:fc  IAP6# show radio

2.4 GHz:
Legacy Mode:disable
Single Chain Legacy:disable
Beacon Interval:100
802.11d/802.11h:disable
Interference Immunity Level:2
Channel Switch Announcement Count:0
MAX Distance:600
Channel Reuse Type:disable
Channel Reuse Threshold:0
Background Spectrum Monitor:disable
Max Tx Power:0
Min Tx Power:0
5.0 GHz:
Legacy Mode:disable
Single Chain Legacy:disable
Beacon Interval:100
802.11d/802.11h:disable
Interference Immunity Level:2
Channel Switch Announcement Count:0
MAX Distance:600
Channel Reuse Type:disable
Channel Reuse Threshold:0
Background Spectrum Monitor:disable
Standalone Spectrum Band:5ghz-upper
Max Tx Power:0
Min Tx Power:0

 

I do notice the TX power - I think mine are set for 12 to max not sure what this is saying.

Guru Elite

Re: Clients seem to randomly lose access

try "show ap arm history"

******************
Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.
******************
Frequent Contributor I

Re: Clients seem to randomly lose access

Interface :wifi0
ARM History
-----------
Time of Change       Old Channel  New Channel  Old Power  New Power  Reason
--------------       -----------  -----------  ---------  ---------  ------
2015-10-30 13:55:57  36+          132+         24         24         Q
2015-10-30 13:53:48  100+         36+          24         24         M
2015-10-30 13:47:24  108+         100+         24         24         I
2015-10-30 11:22:51  60+          108+         24         24         I
2015-10-30 11:18:36  36+          60+          24         24         Q
2015-10-30 11:16:33  132+         36+          24         24         I
2015-10-30 10:57:27  36+          132+         24         24         Q
2015-10-30 10:55:20  140+         36+          24         24         M
2015-10-30 06:49:17  36+          140+         24         24         Q
2015-10-30 06:47:10  100+         36+          24         24         M
2015-10-30 06:39:39  140+         100+         24         24         I
2015-10-30 02:59:53  149+         140+         24         24         I
2015-10-30 02:51:59  157+         149+         24         24         M
2015-10-30 01:31:04  157+         157+         Max        24         P-
Interface :wifi1
ARM History
-----------
Time of Change       Old Channel  New Channel  Old Power  New Power  Reason
--------------       -----------  -----------  ---------  ---------  ------
2015-10-30 01:33:36  6            6            15         12         P-
2015-10-30 01:32:37  6            6            18         15         P-
2015-10-30 01:31:57  6            6            21         18         P-
2015-10-30 01:31:46  6            6            24         21         P-
2015-10-30 01:31:05  6            6            Max        24         P-
I: Interference, R: Radar detection, N: Noise exceeded, Q: Bad Channel Quality E: Error threshold exceeded, INV: Invalid Channel, G: Rogue AP Containment, M: Empty Channel, P+: Increase Power, P-: Decrease Power, 40INT: 40MHZ intol detected on 2.4G, NO40INT: 40MHz intol cleared on 2.4G, OFF: Turn off Radio, ON: Turn on Radio

Guru Elite

Re: Clients seem to randomly lose access

It seems like your ARM power is too high.  You need to go into ARM and set the Minimum and max to 9 and 15 respectively.  Click on RF> Advanced and then change the parameters like in the highlighted portion of this screenshot:

iap-arm.png

******************
Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.
******************
Frequent Contributor I

Re: Clients seem to randomly lose access

Thanks - I had tried that a few days ago but it didn't seem to help so I put it back.  I'll set it back again.

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