Network Management

I seem to be experiencing odd problems with my client looking like its dropped of our wireless network at least from the Dashboard view of things, the client doesn't actually drop off the network. 

See below dashboard screen capture of my client. I also see the same in Airwave VisualRF my client will drop off the plan for a period of time and then like the dashboard will come back at somepoint and then disappear again.

I've tried rebooting my client, reinstalling the drivers etc but still get the same issue.

So I now think its something to do with the controller.

What can I do to try and pin down what's causing the issue as its going to make troubleshooting the network extremely difficult if this is happening to more than just my laptop.

Laptop Dell, Windows 7, internal NIC disabled, using external Netgear AC1200 USB adapter.

Any help with this would be much appreciated.

JonChill,

How often does this happen?

Does it happen with any other clients?

Is someone using the client to see if it actually has no connectivity?

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@cjoseph wrote:

JonChill,

 

How often does this happen? I've seen it happen 2 - 3 times a day

Does it happen with any other clients?  Something I haven't looked into at the moment.

Is someone using the client to see if it actually has no connectivity? Its my own laptop and when it shows as not being connected on the dashboard it doesn't drop the connection and the streaming radio I have on doesn't stutter or do anything out of the ordinary.

 

Thanks

 

Jon

 

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I would start with a constant ping to the default gateway to see if your traffic is interrupted.  Streaming audio could be cached and might not drop out when connectivity drops out.

It could also be an artifact of the driver, but let's make sure that there are no connectivity issues first.

I would start with a constant ping to the default gateway to see if your traffic is interrupted.  Streaming audio could be cached and might not drop out when connectivity drops out.

It could also be an artifact of the driver, but let's make sure that there are no connectivity issues first.

Colin

Its just dropped off the Dashboard again, the ping stayed continuous and didn't drop a packet.

Below is the output from the controller CLI for my client, still showing as connected for the last 47m.

(PHMDP01_Aruba7220_1) #show ap association client-mac c0:ff:d4:b9:49:12

The phy column shows client's operational capabilities for current association

Flags: A: Active, B: Band Steerable, H: Hotspot(802.11u) client, K: 802.11K client, R: 802.11R client, W: WMM client, w: 802.11w client V: 802.11v BSS trans capable

PHY Details: HT : High throughput; 20: 20MHz; 40: 40MHz
VHT : Very High throughput; 80: 80MHz; 160: 160MHz; 80p80: 80MHz + 80MHz
<n>ss: <n> spatial streams

Association Table
-----------------
Name bssid mac auth assoc aid l-int essid vlan-id tunnel-id phy assoc. time num assoc Flags Band steer moves (T/S)
---- ----- --- ---- ----- --- ----- ----- ------- --------- --- ----------- --------- ----- ----------------------
PH10_IT_AP31 ac:a3:1e:bb:33:11 c0:ff:d4:b9:49:12 y y 1 3 DWLAN 250 0x10ac0 a-VHT-80sgi-2ss 47m:30s 1 WAB 1690/333

c0:ff:d4:b9:49:12-ac:a3:1e:bb:33:11 Stats
------------------------------------------
Parameter Value
--------- -----
Channel 36
Channel Frame Retry Rate(%) 0
Channel Frame Low Speed Rate(%) 0
Channel Frame Non Unicast Rate(%) 0
Channel Frame Fragmentation Rate(%) 0
Channel Frame Error Rate(%) 0
Channel Bandwidth Rate(kbps) 0
Channel Noise 97
Client Frame Retry Rate(%) 0
Client Frame Low Speed Rate(%) 0
Client Frame Non Unicast Rate(%) 0
Client Frame Fragmentation Rate(%) 0
Client Frame Receive Error Rate(%) 0
Client Bandwidth Rate(kbps) 0
Client Tx Packets 2524531
Client Rx Packets 940231
Client Tx Bytes 339245534
Client Rx Bytes 841956205
Client SNR 41
A2c_SM SeqNum, Old SeqNums 432 0

(PHMDP01_Aruba7220_1) #

Its also dropped out of Airwave.

Thanks

Jon

Which version of ArubaOS?

6.4.2.4

Thanks

Jon

I would upgrade to the latest 6.4.2.x and see if it continues.  It is inconclusive what is going on here.  Alternatively, you can open a case so that they can look into it further.

I upgraded yesterday to 6.4.2.10 and still see the issue so will be logging a call with our support.

Thanks for your help.

Jon