Hello!
About a month ago I updated our wifi-clusters to software Aruba Instant 8.10.0.21 (LSR). Everything worked stably, but recently I encountered a problem where clients under some access points were losing connectivity.
I collected the dumps and analyzed them, I see that the access point gets "stuck" in an undefined state when changing channels. Its radio module broadcasts on one channel (let's say 36), but at the same time continuously sends an mgmt action frame to all clients, in which it sends a CSA message (let's say 60). However, it does not switch to a new channel, continuing broadcasting on only current channel (36). In this case, clients change their radio module to a new channel (60), but all their packets are sent to the wrong frequency - and clients lose connectivity.
Below are a couple of commands from the cli of such an access point (you can see the difference between the working channels):
# sh ap debug radio-info 0 | inc "Using channel"
Using channel 153
# sh ap debug radio-state 0 | inc "Channel +"
Channel 52
I suspect the ARM process is malfunctioning or there's a bug in the software. Only a reboot will help get the access point out of this situation.
So far, of all the access point models I have used, only AP514/515 has exhibited this behavior.
Has anyone experienced similar symptoms? What advice can you give (other than contacting the TAC)?
I appreciate any help and answers. Thanks!
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