on 10-27-2014 08:28 AM
We have been getting increasingly frequent complaints from the students of being disconnected regularly from the wireless network. Aside from the usual difficulties of getting the students to provide further details it has also been difficult to track down when the students do give details. The problem can happen in the middle of an active session like a Skype call, but is often just a pop up on Windows laptops notifiying them of the loss of connectivity or they see the spinning wheel on an OS X laptop. As the reports go the commputers often reconnect without any action needed but sometimes the computer only connects if the student shutsdown wifi and turns it back on. In all cases the students are Setting debugging on the clients has not shown any obvious patterns. Sometimes the logs shown a Client Match event, other times they show the client timed out and was deauth'd, and sometimes nothing obvious is in the logs. I can not reproduce the problem, predict when it will happen next or find a clean way of identifying it has happened in the logs. Any suggestions are greatly appreciated.
We are running 220.127.116.11, having upgraded from 18.104.22.168 two weeks ago. We have a pair M3's as the Master and two 7220's as local controllers sharing the load between ~560 APs.
It could be something in 6.4 and I am considering going back to the latet 6.3. We went to 6.4 for the improvements in Airgroup and the addition of getting the Chromecast to work.
on 10-27-2014 08:40 AM
We are a small shop with one 7210 controller and about 170 APs and we are seeing exactly what you describe after moving to 22.214.171.124 from 126.96.36.199. We are new to Aruba (about three months and counting) so we are not as familiar with the tools available to troubleshoot, but likewise we have not been able to pin it to any particular event. We are also thinking about bumping back down to 188.8.131.52. Our primary SSID is 802.1X, and we also provide an open SSID for students to register devices. Most that we've heard from are on the 802.1X network but we are not sure that it is exclusive. Would be interested to hear if 802.1X is also involved for you.
on 10-27-2014 08:47 AM
We are seeing the same problems in our environment. We are seeing complaints only from our 802.1x SSID. We are also seeing some issues where students are not able to connect at all despite fantastic signal strength and almost zero interference.
We too upgraded to 6.4 for improvements in Airgroup. We first started noticing problems in 184.108.40.206 but we suspect that there were some problems in 220.127.116.11 as well. We updated to 18.104.22.168 code today to try to mitigate some of the issues.
We are running a single 3600 as a master with 4 M3s. We have a total of 878 access points with a mixture of 105, 130 series, and 220 series with a few 175 and 275. We see the issues across all models.
Did you first notice the problem after you updated to 6.4?
on 10-27-2014 08:51 AM
Have any TAC cases been opened to investigate these issues?
interesting to know as I am running a hotspot network on 22.214.171.124 and I haven't heard of any issues yet but obviously the configuration is much simpler and we are running an open SSID.
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on 10-27-2014 08:53 AM
We started on 126.96.36.199 because we have AP-205s and needed 6.4 to support them, so we've not known anything different. And, we have been in the process of rolling out Aruba across campus and replacing our previous system, so there was a lot of stuff in flux - if someone had an issue, we said "we're under construction" most times. Eventually, we got it rolled out everywhere and things seemed OK. From our view, 188.8.131.52 made it worse, or at least that's when we started hearing more complaints.
on 10-27-2014 09:19 AM
Thanks for all of the replies!
I have just opened a case with TAC on this issue.
I am not sure if we had this problem before 6.4. It has been trickling up for a while and I am not sure if it goes back to this summer or earlier.
on 10-27-2014 09:21 AM
What type of APs are you using ?
Lead Mobility Engineer @ Integration Partners
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA
on 10-27-2014 09:22 AM
802.1x is how are students connect. We do have a PSK network for things that have difficulty with 1x. The examples I have are all 1x.
Logs and user-debug are uploaded to the ticket. I will let you know what I find.
on 10-27-2014 09:36 AM
I had to double-check the post because I thought I wrote it. We have roughly the same AP's, same complaints, almost the same controllers (was actually hoping the 7200's were better since we're just M3's still), the same reason for upgrading (chromecast) and running the same ArubaOS. 6.3 didn't seem any better for us and we also have some new AP-104's that we loan out for students in their dorms.
This year has been brutal for us. The prior 7 were great. People want to know what's up with wifi. My best guess at this point:
I think there is only so much I can 'fix'.