hi all,
Chipping in on this, yes I have seen this issue at three large enterprise customers, Lenovo eventually asked the customer to disable the VHT in the driver (they were on the 17.x latest) and that stabilised, but not after we had to clean up a few things on the Aruba side.
For 7260 and AP225, the following needs to be true as of now to minimise problems like lost WLANS, ! icons, stalls, disconnections etc.
>> client must be on latest 17.x driver
>> ArubaOS must be 6.4.2.3 or higher (i.e. prefer 6.4.2.4 right now) - absolutely cannot be less than 6.4.2.3 unless its the HDMS load but that's a longer story.
>> ensure features like 11k are not enabled
>> disable wmm-uapsd in the SSID profiles
>> Disable VHT in the client supplicant if you are seeing "!" icon, missing WLAN ssids etc. * see note 1
* Caveat - I have yet to personally test if the 17.13 driver deals with the need to disable VHT at the client to stop the "wlan disappears" lockup, if anyone proves to the contrary please update the thread
* note1 - this has been reported to us as a solution to the supplicant lockup issue, YMMV
thecompnerd wrote:
I'm going to disable WMM U-APSD tonight to see if this improves anything based on a TAC suggestion, but I worry about the sides effects of clients reverting to PS Poll mode.
>> We have done this in multiple Aruba 11ac customers, there should be no issue from it.
regards
-jeff
#AP225