Well, I'm not quite certain can this controller be updated to ArubaOS 8.x or not as it is Dell branded Mobility Controller and how does it affect the licenses. We are running version 6.5.4.4 which is rather old.
I tried clearing the browser cache but it didn't change the situation. Everything else is OK but statistics missing. I'm a bit baffled as it sometimes shows some information, like channel utilization, quality etc, througput and usage(bps) is always missing. And even though the controller shows for example 6 clients connected to the AP the chart always says 0 clients. It's like it is sending data, but controller doesn't know what to do with it. I just don't know where could I find what is wrong.