I just upgraded from 220.127.116.11 to 2.4.1 on my A5 and C5’s. There seems to be a change to SNMP on the A5 in this firmware change. We SNMP poll the AP every 30 seconds. Since upgrading to 2.4.1, those throughput request alternate between 0 Mbps and actual throughput every 30 seconds.
To explain better, here is a throughput graph before we upgraded to 2.4.1:
Here is a throughput graph after upgrading to 2.4.1:
Every other SNMP poll is 0 Mbps when in reality, that is not the case. We also poll the switch port this radio is attached to so I know the traffic is not matching the pattern displayed in the 2.4.1 graph.