Hi All,
We have very strange issue and I hope someone will help us out.
We installed 4 demo units of Aruba instant (for test) in one of the Schools for an Exam Room (2xIAP225, 2xIAP215) in one IAP cluster. Topology is following:
AP Connects to HP 1820 (access, 2AP to 2 x1820), then goes to HP 2510 Core and also Cisco 881 is used as a router (and DHCP).
AP's run on latest 6.5.4.3 Firmware.
There are two classrooms, both equipped with approx. 170 Mac PC's. (old ones with only 2.4 GHz support). This Mac's are used for exam purpose and are critical.
Only 2 SSID are used - for exam and for staff.
The problem is following:
When we have like 30-40 users connected everything works fine and performance is good. However, when more devices start to connect and there are approximately more than 100 clients (maxing at 170), we start receiving extremely bad connection (almost no internet access) and applications refuse to work. It's not an internet issue, because when we even try to ping local router (cisco) or even AP the latency is like 8000+ and even connections of Wi-Fi start to drop at all on some clients. When we test router ping on 20-30 users connected only, we receive good 2-3ms ping on router and on switch and AP.
Internesting is that there is another network used on same network (switches and router) of Ubiquity. When we get problems with Aruba (many users are connected) and test ping with Ubiquity on Router, everything works fine (good ping) and SpeedTest gives good numbers - we also tested same from the Wired network while Aruba's were under heavy load and received good figures.
So as we see, there is a problem with access points. We tested Ruckus700 and 100 clients worked flawlessly on single AP.
Can you pleas help figure out what is going wrong? In Instant Admin we see that distribution of clients between AP is usually equal (40x per AP), but i guess 225 and 215's must handle even more users.
Any suggestion?