I was hoping to pick some brains out there on where to begin trouble shooting a problem I am facing with clients dropping suddenly on our Aruba Instant 225 deployment at a school site.
For reference here is our setup:
-Airwave 8.0.10 - located at Datacenter at District Office
-Instant IAP 225s running firmware 6.4.2.6-4.1.1.11_52666 - located at a school site connected over WAN
-We have 44 IAPs deployed on this campus. One in every classroom.
-We are using a full deployment of Aruba MAS 2500/3500 switches and an Alcatel Lucent OS6900 Fiber router on the site.
-Mix of client devices, but primarily Acer netbooks running Ubermix (Ubuntu mod). Roughly 600 deployed on the campus.
Our problem:
We recently noticed that 90-100% of our clients are showing as dropping connection a few times a day. We have heard complaints from a couple of teachers that they are seeing the laptops drop their connections. I have attached an image of the "Clients graph" from airwave for this school site.
What I know:
-We have 23 school sites with full Aruba deployment and this is the only one showing these kinds of client drops.
-The uptime of the Access Points is 12hours + (as seen in the image) and so there is no suggestion that the AP's are rebooting for any reason.
-We are not losing packets to any of switches/routers out at the school site, so we are confident this is not a network outage scenario or flapping issue.
-There hasn't been any pattern or common factor, that we can identify, as to why the clients are dropping.
Anyways, I'm not entirely comfortable with Airwave and was hoping someone could point me in a good starting direction for finding the root cause of these MASS drops.
Thanks for any insight you can give!